afsc.c revision 1.33
1 /* $NetBSD: afsc.c,v 1.33 2003/08/07 16:26:39 agc Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)dma.c 32 */ 33 34 /* 35 * Copyright (c) 1994 Michael L. Hitch 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)dma.c 66 */ 67 68 #include <sys/cdefs.h> 69 __KERNEL_RCSID(0, "$NetBSD: afsc.c,v 1.33 2003/08/07 16:26:39 agc Exp $"); 70 71 #include <sys/param.h> 72 #include <sys/systm.h> 73 #include <sys/kernel.h> 74 #include <sys/device.h> 75 76 #include <uvm/uvm_extern.h> 77 78 #include <dev/scsipi/scsi_all.h> 79 #include <dev/scsipi/scsipi_all.h> 80 #include <dev/scsipi/scsiconf.h> 81 #include <machine/cpu.h> 82 #include <amiga/amiga/custom.h> 83 #include <amiga/amiga/cc.h> 84 #include <amiga/amiga/device.h> 85 #include <amiga/amiga/isr.h> 86 #include <amiga/dev/siopreg.h> 87 #include <amiga/dev/siopvar.h> 88 #include <amiga/dev/zbusvar.h> 89 90 void afscattach(struct device *, struct device *, void *); 91 int afscmatch(struct device *, struct cfdata *, void *); 92 int afsc_dmaintr(void *); 93 #ifdef DEBUG 94 void afsc_dump(void); 95 #endif 96 97 98 #ifdef DEBUG 99 #endif 100 101 CFATTACH_DECL(afsc, sizeof(struct siop_softc), 102 afscmatch, afscattach, NULL, NULL); 103 104 CFATTACH_DECL(aftsc, sizeof(struct siop_softc), 105 afscmatch, afscattach, NULL, NULL); 106 107 /* 108 * if we are a Commodore Amiga A4091 or possibly an A4000T 109 */ 110 int 111 afscmatch(struct device *pdp, struct cfdata *cfp, void *auxp) 112 { 113 struct zbus_args *zap; 114 siop_regmap_p rp; 115 u_long temp, scratch; 116 117 zap = auxp; 118 if (zap->manid == 514 && zap->prodid == 84) 119 return(1); /* It's an A4091 SCSI card */ 120 if (!is_a4000() || !matchname(auxp, "afsc")) 121 return(0); /* Not on an A4000 or not A4000T SCSI */ 122 rp = ztwomap(0xdd0040); 123 if (badaddr((caddr_t)&rp->siop_scratch) || badaddr((caddr_t)&rp->siop_temp)) { 124 return(0); 125 } 126 scratch = rp->siop_scratch; 127 temp = rp->siop_temp; 128 rp->siop_scratch = 0xdeadbeef; 129 rp->siop_temp = 0xaaaa5555; 130 if (rp->siop_scratch != 0xdeadbeef || rp->siop_temp != 0xaaaa5555) 131 return(0); 132 rp->siop_scratch = scratch; 133 rp->siop_temp = temp; 134 if (rp->siop_scratch != scratch || rp->siop_temp != temp) 135 return(0); 136 return(1); 137 } 138 139 void 140 afscattach(struct device *pdp, struct device *dp, void *auxp) 141 { 142 struct siop_softc *sc = (struct siop_softc *)dp; 143 struct zbus_args *zap; 144 siop_regmap_p rp; 145 struct scsipi_adapter *adapt = &sc->sc_adapter; 146 struct scsipi_channel *chan = &sc->sc_channel; 147 148 printf("\n"); 149 150 zap = auxp; 151 152 if (zap->manid == 514 && zap->prodid == 84) 153 sc->sc_siopp = rp = (siop_regmap_p)((caddr_t)zap->va + 154 0x00800000); 155 else 156 sc->sc_siopp = rp = ztwomap(0xdd0040); 157 158 /* 159 * CTEST7 = 80 [disable burst] 160 */ 161 sc->sc_clock_freq = 50; /* Clock = 50Mhz */ 162 sc->sc_ctest7 = SIOP_CTEST7_CDIS; 163 sc->sc_dcntl = SIOP_DCNTL_EA; 164 165 /* 166 * Fill in the scsipi_adapter. 167 */ 168 memset(adapt, 0, sizeof(*adapt)); 169 adapt->adapt_dev = &sc->sc_dev; 170 adapt->adapt_nchannels = 1; 171 adapt->adapt_openings = 7; 172 adapt->adapt_max_periph = 1; 173 adapt->adapt_request = siop_scsipi_request; 174 adapt->adapt_minphys = siop_minphys; 175 176 /* 177 * Fill in the scsipi_channel. 178 */ 179 memset(chan, 0, sizeof(*chan)); 180 chan->chan_adapter = adapt; 181 chan->chan_bustype = &scsi_bustype; 182 chan->chan_channel = 0; 183 chan->chan_ntargets = 8; 184 chan->chan_nluns = 8; 185 chan->chan_id = 7; 186 187 siopinitialize(sc); 188 189 sc->sc_isr.isr_intr = afsc_dmaintr; 190 sc->sc_isr.isr_arg = sc; 191 sc->sc_isr.isr_ipl = 2; 192 add_isr (&sc->sc_isr); 193 194 /* 195 * attach all scsi units on us 196 */ 197 config_found(dp, chan, scsiprint); 198 } 199 200 int 201 afsc_dmaintr(void *arg) 202 { 203 struct siop_softc *sc = arg; 204 siop_regmap_p rp; 205 u_char istat; 206 207 if (sc->sc_flags & SIOP_INTSOFF) 208 return (0); /* interrupts are not active */ 209 rp = sc->sc_siopp; 210 istat = rp->siop_istat; 211 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) 212 return(0); 213 /* 214 * save interrupt status, DMA status, and SCSI status 0 215 * (may need to deal with stacked interrupts?) 216 */ 217 sc->sc_sstat0 = rp->siop_sstat0; 218 sc->sc_istat = istat; 219 sc->sc_dstat = rp->siop_dstat; 220 siopintr(sc); 221 return(1); 222 } 223 224 #ifdef DEBUG 225 void 226 afsc_dump(void) 227 { 228 extern struct cfdriver afsc_cd; 229 int i; 230 231 for (i = 0; i < afsc_cd.cd_ndevs; ++i) 232 if (afsc_cd.cd_devs[i]) 233 siop_dump(afsc_cd.cd_devs[i]); 234 } 235 #endif 236
Indexes created Fri Sep 26 08:10:20 GMT 2025