1 /* $NetBSD: cbiiisc.c,v 1.11 2003/04/09 01:54:44 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 1.11 2003/04/09 01:54:44 thorpej Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/device.h> 46 47 #include <uvm/uvm_extern.h> 48 49 #include <dev/scsipi/scsi_all.h> 50 #include <dev/scsipi/scsipi_all.h> 51 #include <dev/scsipi/scsiconf.h> 52 #include <amiga/amiga/custom.h> 53 #include <amiga/amiga/cc.h> 54 #include <amiga/amiga/device.h> 55 #include <amiga/amiga/isr.h> 56 57 #define ARCH_720 /* This is for a 53c770 */ 58 59 #include <amiga/dev/siopreg.h> 60 #include <amiga/dev/siopvar.h> 61 #include <amiga/dev/zbusvar.h> 62 63 void cbiiiscattach(struct device *, struct device *, void *); 64 int cbiiiscmatch(struct device *, struct cfdata *, void *); 65 int cbiiisc_dmaintr(void *); 66 #ifdef DEBUG 67 void cbiiisc_dump(void); 68 #endif 69 70 #ifdef DEBUG 71 #endif 72 73 CFATTACH_DECL(cbiiisc, sizeof(struct siop_softc), 74 cbiiiscmatch, cbiiiscattach, NULL, NULL); 75 76 /* 77 * if we are a CyberStorm MK III SCSI 78 */ 79 int 80 cbiiiscmatch(struct device *pdp, struct cfdata *cfp, void *auxp) 81 { 82 struct zbus_args *zap; 83 84 zap = auxp; 85 if (zap->manid == 8512 && zap->prodid == 100) 86 return(1); 87 return(0); 88 } 89 90 void 91 cbiiiscattach(struct device *pdp, struct device *dp, void *auxp) 92 { 93 struct siop_softc *sc = (struct siop_softc *)dp; 94 struct zbus_args *zap; 95 siop_regmap_p rp; 96 struct scsipi_adapter *adapt = &sc->sc_adapter; 97 struct scsipi_channel *chan = &sc->sc_channel; 98 99 printf("\n"); 100 101 zap = auxp; 102 103 sc->sc_siopp = rp = ztwomap(0xf40000); 104 /* siopng_dump_registers(sc); */ 105 106 /* 107 * CTEST7 = 00 108 */ 109 sc->sc_clock_freq = 50; /* Clock = 50 Mhz >> */ 110 sc->sc_ctest7 = 0x00; 111 sc->sc_dcntl = 0x20; /* XXX ?? */ 112 113 alloc_sicallback(); 114 115 /* 116 * Fill in the scsipi_adapter. 117 */ 118 memset(adapt, 0, sizeof(*adapt)); 119 adapt->adapt_dev = &sc->sc_dev; 120 adapt->adapt_nchannels = 1; 121 adapt->adapt_openings = 7; 122 adapt->adapt_max_periph = 1; 123 adapt->adapt_request = siopng_scsipi_request; 124 adapt->adapt_minphys = siopng_minphys; 125 126 /* 127 * Fill in the scsipi_channel. 128 */ 129 memset(chan, 0, sizeof(*chan)); 130 chan->chan_adapter = adapt; 131 chan->chan_bustype = &scsi_bustype; 132 chan->chan_channel = 0; 133 chan->chan_ntargets = 16; 134 chan->chan_nluns = 8; 135 chan->chan_id = 7; 136 137 siopnginitialize(sc); 138 139 if (sc->sc_channel.chan_ntargets < 0) 140 return; 141 142 sc->sc_isr.isr_intr = cbiiisc_dmaintr; 143 sc->sc_isr.isr_arg = sc; 144 sc->sc_isr.isr_ipl = 2; /* ?? */ 145 add_isr(&sc->sc_isr); 146 147 /* 148 * attach all scsi units on us 149 */ 150 config_found(dp, chan, scsiprint); 151 } 152 153 int 154 cbiiisc_dmaintr(void *arg) 155 { 156 struct siop_softc *sc = arg; 157 siop_regmap_p rp; 158 int istat; 159 160 if (sc->sc_flags & SIOP_INTSOFF) 161 return (0); /* interrupts are not active */ 162 rp = sc->sc_siopp; 163 istat = rp->siop_istat; 164 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) 165 return(0); 166 /* 167 * save interrupt status, DMA status, and SCSI status 0 168 * (may need to deal with stacked interrupts?) 169 */ 170 sc->sc_sist = rp->siop_sist; 171 sc->sc_istat = istat; 172 sc->sc_dstat = rp->siop_dstat; 173 siopngintr(sc); 174 return(1); 175 } 176 177 #ifdef DEBUG 178 void 179 cbiiisc_dump(void) 180 { 181 extern struct cfdriver cbiiisc_cd; 182 int i; 183 184 for (i = 0; i < cbiiisc_cd.cd_ndevs; ++i) 185 if (cbiiisc_cd.cd_devs[i]) 186 siopng_dump(cbiiisc_cd.cd_devs[i]); 187 } 188 #endif 189