1 /* 2 * Copyright (c) 1994 Michael L. Hitch 3 * Copyright (c) 1982, 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)dma.c 35 * $Id: wesc.c,v 1.1 1994/05/12 06:00:05 chopps Exp $ 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/device.h> 42 #include <scsi/scsi_all.h> 43 #include <scsi/scsiconf.h> 44 #include <amiga/amiga/custom.h> 45 #include <amiga/amiga/cc.h> 46 #include <amiga/amiga/device.h> 47 #include <amiga/dev/siopreg.h> 48 #include <amiga/dev/siopvar.h> 49 #include <amiga/dev/zthreebusvar.h> 50 51 int wescprint __P((void *auxp, char *)); 52 void wescattach __P((struct device *, struct device *, void *)); 53 int wescmatch __P((struct device *, struct cfdata *, void *)); 54 55 struct scsi_adapter wesc_scsiswitch = { 56 siop_scsicmd, 57 siop_minphys, 58 0, /* no lun support */ 59 0, /* no lun support */ 60 siop_adinfo, 61 "wesc", 62 }; 63 64 struct scsi_device wesc_scsidev = { 65 NULL, /* use default error handler */ 66 NULL, /* do not have a start functio */ 67 NULL, /* have no async handler */ 68 NULL, /* Use default done routine */ 69 "wesc", 70 0, 71 }; 72 73 74 #ifdef DEBUG 75 #endif 76 77 struct cfdriver wesccd = { 78 NULL, "wesc", wescmatch, wescattach, 79 DV_DULL, sizeof(struct siop_softc), NULL, 0 }; 80 81 /* 82 * if we are an MacroSystemsUS Warp Engine 83 */ 84 int 85 wescmatch(pdp, cdp, auxp) 86 struct device *pdp; 87 struct cfdata *cdp; 88 void *auxp; 89 { 90 struct zthreebus_args *zap; 91 92 zap = auxp; 93 if (zap->manid == 2203 && zap->prodid == 19) 94 return(1); 95 return(0); 96 } 97 98 void 99 wescattach(pdp, dp, auxp) 100 struct device *pdp, *dp; 101 void *auxp; 102 { 103 struct siop_softc *sc; 104 struct zthreebus_args *zap; 105 siop_regmap_p rp; 106 107 zap = auxp; 108 109 sc = (struct siop_softc *)dp; 110 sc->sc_siopp = rp = zap->va + 0x40000; 111 112 /* 113 * DCNTL = 37.51->50.00MHZ / SCLK/2 114 * CTEST7 = SC0, TT1 115 */ 116 sc->sc_clock_freq = 0x2200; 117 118 siopreset(sc); 119 120 sc->sc_link.adapter_softc = sc; 121 sc->sc_link.adapter_targ = 7; 122 sc->sc_link.adapter = &wesc_scsiswitch; 123 sc->sc_link.device = &wesc_scsidev; 124 TAILQ_INIT(&sc->sc_xslist); 125 126 custom.intreq = INTF_PORTS; 127 custom.intena = INTF_SETCLR | INTF_PORTS; 128 129 /* 130 * attach all scsi units on us 131 */ 132 config_found(dp, &sc->sc_link, wescprint); 133 } 134 135 /* 136 * print diag if pnp is NULL else just extra 137 */ 138 int 139 wescprint(auxp, pnp) 140 void *auxp; 141 char *pnp; 142 { 143 if (pnp == NULL) 144 return(UNCONF); 145 return(QUIET); 146 } 147 148 149 int 150 wesc_dmaintr() 151 { 152 siop_regmap_p rp; 153 struct siop_softc *dev; 154 int i, found; 155 u_char istat; 156 157 found = 0; 158 for (i = 0; i < wesccd.cd_ndevs; i++) { 159 dev = wesccd.cd_devs[i]; 160 if (dev == NULL) 161 continue; 162 rp = dev->sc_siopp; 163 istat = rp->siop_istat; 164 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) 165 continue; 166 if ((dev->sc_flags & (SIOP_DMA | SIOP_SELECTED)) == SIOP_SELECTED) 167 continue; /* doing non-interrupt I/O */ 168 found++; 169 dev->sc_istat = istat; 170 dev->sc_dstat = rp->siop_dstat; 171 dev->sc_sstat0 = rp->siop_sstat0; 172 siopintr(dev); 173 } 174 return(found); 175 } 176