1 /* $NetBSD: wesc.c,v 1.5 1994/12/01 17:25:38 chopps 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 <scsi/scsi_all.h> 44 #include <scsi/scsiconf.h> 45 #include <amiga/amiga/custom.h> 46 #include <amiga/amiga/cc.h> 47 #include <amiga/amiga/device.h> 48 #include <amiga/dev/siopreg.h> 49 #include <amiga/dev/siopvar.h> 50 #include <amiga/dev/zthreebusvar.h> 51 52 int wescprint __P((void *auxp, char *)); 53 void wescattach __P((struct device *, struct device *, void *)); 54 int wescmatch __P((struct device *, struct cfdata *, void *)); 55 56 struct scsi_adapter wesc_scsiswitch = { 57 siop_scsicmd, 58 siop_minphys, 59 0, /* no lun support */ 60 0, /* no lun support */ 61 siop_adinfo, 62 "wesc", 63 }; 64 65 struct scsi_device wesc_scsidev = { 66 NULL, /* use default error handler */ 67 NULL, /* do not have a start functio */ 68 NULL, /* have no async handler */ 69 NULL, /* Use default done routine */ 70 "wesc", 71 0, 72 }; 73 74 75 #ifdef DEBUG 76 #endif 77 78 struct cfdriver wesccd = { 79 NULL, "wesc", (cfmatch_t)wescmatch, wescattach, 80 DV_DULL, sizeof(struct siop_softc), NULL, 0 }; 81 82 /* 83 * if we are an MacroSystemsUS Warp Engine 84 */ 85 int 86 wescmatch(pdp, cdp, auxp) 87 struct device *pdp; 88 struct cfdata *cdp; 89 void *auxp; 90 { 91 struct zthreebus_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 zthreebus_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 * DCNTL = 37.51->50.00MHZ / SCLK/2 117 * CTEST7 = SC0, TT1 118 */ 119 sc->sc_clock_freq = 0x2200; 120 121 siopinitialize(sc); 122 123 sc->sc_link.adapter_softc = sc; 124 sc->sc_link.adapter_targ = 7; 125 sc->sc_link.adapter = &wesc_scsiswitch; 126 sc->sc_link.device = &wesc_scsidev; 127 TAILQ_INIT(&sc->sc_xslist); 128 129 custom.intreq = INTF_PORTS; 130 custom.intena = INTF_SETCLR | INTF_PORTS; 131 132 /* 133 * attach all scsi units on us 134 */ 135 config_found(dp, &sc->sc_link, wescprint); 136 } 137 138 /* 139 * print diag if pnp is NULL else just extra 140 */ 141 int 142 wescprint(auxp, pnp) 143 void *auxp; 144 char *pnp; 145 { 146 if (pnp == NULL) 147 return(UNCONF); 148 return(QUIET); 149 } 150 151 152 int 153 wesc_dmaintr() 154 { 155 siop_regmap_p rp; 156 struct siop_softc *dev; 157 int i, found; 158 u_char istat; 159 160 found = 0; 161 for (i = 0; i < wesccd.cd_ndevs; i++) { 162 dev = wesccd.cd_devs[i]; 163 if (dev == NULL) 164 continue; 165 rp = dev->sc_siopp; 166 istat = rp->siop_istat; 167 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) 168 continue; 169 if ((dev->sc_flags & (SIOP_DMA | SIOP_SELECTED)) == SIOP_SELECTED) 170 continue; /* doing non-interrupt I/O */ 171 found++; 172 dev->sc_istat = istat; 173 dev->sc_dstat = rp->siop_dstat; 174 dev->sc_sstat0 = rp->siop_sstat0; 175 siopintr(dev); 176 } 177 return(found); 178 } 179