dma_sbus.c revision 1.19
1 /* $NetBSD: dma_sbus.c,v 1.19 2003/02/06 15:21:21 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Kranenburg. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1994 Peter Galbavy. All rights reserved. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. All advertising materials mentioning features or use of this software 51 * must display the following acknowledgement: 52 * This product includes software developed by Peter Galbavy. 53 * 4. The name of the author may not be used to endorse or promote products 54 * derived from this software without specific prior written permission. 55 * 56 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 57 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 58 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 59 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 60 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 61 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 62 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 63 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 64 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 65 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 66 */ 67 68 #include <sys/cdefs.h> 69 __KERNEL_RCSID(0, "$NetBSD: dma_sbus.c,v 1.19 2003/02/06 15:21:21 martin Exp $"); 70 71 #include <sys/param.h> 72 #include <sys/systm.h> 73 #include <sys/kernel.h> 74 #include <sys/errno.h> 75 #include <sys/device.h> 76 #include <sys/malloc.h> 77 #include <sys/lock.h> 78 79 #include <machine/bus.h> 80 #include <machine/intr.h> 81 #include <machine/autoconf.h> 82 83 #include <dev/sbus/sbusvar.h> 84 85 #include <dev/ic/lsi64854reg.h> 86 #include <dev/ic/lsi64854var.h> 87 88 #include <dev/scsipi/scsi_all.h> 89 #include <dev/scsipi/scsipi_all.h> 90 #include <dev/scsipi/scsiconf.h> 91 92 #include <dev/ic/ncr53c9xreg.h> 93 #include <dev/ic/ncr53c9xvar.h> 94 95 struct dma_softc { 96 struct lsi64854_softc sc_lsi64854; /* base device */ 97 struct sbusdev sc_sd; /* sbus device */ 98 }; 99 100 int dmamatch_sbus __P((struct device *, struct cfdata *, void *)); 101 void dmaattach_sbus __P((struct device *, struct device *, void *)); 102 103 int dmaprint_sbus __P((void *, const char *)); 104 105 void *dmabus_intr_establish __P(( 106 bus_space_tag_t, 107 int, /*bus interrupt priority*/ 108 int, /*`device class' level*/ 109 int (*) __P((void *)), /*handler*/ 110 void *, /*handler arg*/ 111 void (*) __P((void)))); /*optional fast trap handler*/ 112 113 static bus_space_tag_t dma_alloc_bustag __P((struct dma_softc *sc)); 114 115 CFATTACH_DECL(dma_sbus, sizeof(struct dma_softc), 116 dmamatch_sbus, dmaattach_sbus, NULL, NULL); 117 118 CFATTACH_DECL(ledma, sizeof(struct dma_softc), 119 dmamatch_sbus, dmaattach_sbus, NULL, NULL); 120 121 int 122 dmaprint_sbus(aux, busname) 123 void *aux; 124 const char *busname; 125 { 126 struct sbus_attach_args *sa = aux; 127 bus_space_tag_t t = sa->sa_bustag; 128 struct dma_softc *sc = t->cookie; 129 130 sa->sa_bustag = sc->sc_lsi64854.sc_bustag; /* XXX */ 131 sbus_print(aux, busname); /* XXX */ 132 sa->sa_bustag = t; /* XXX */ 133 return (UNCONF); 134 } 135 136 int 137 dmamatch_sbus(parent, cf, aux) 138 struct device *parent; 139 struct cfdata *cf; 140 void *aux; 141 { 142 struct sbus_attach_args *sa = aux; 143 144 return (strcmp(cf->cf_name, sa->sa_name) == 0 || 145 strcmp("espdma", sa->sa_name) == 0); 146 } 147 148 void 149 dmaattach_sbus(parent, self, aux) 150 struct device *parent, *self; 151 void *aux; 152 { 153 struct sbus_attach_args *sa = aux; 154 struct dma_softc *dsc = (void *)self; 155 struct lsi64854_softc *sc = &dsc->sc_lsi64854; 156 bus_space_tag_t sbt; 157 int sbusburst, burst; 158 int node; 159 160 node = sa->sa_node; 161 162 sc->sc_bustag = sa->sa_bustag; 163 sc->sc_dmatag = sa->sa_dmatag; 164 165 /* Map registers */ 166 if (sa->sa_npromvaddrs) { 167 sbus_promaddr_to_handle(sa->sa_bustag, 168 sa->sa_promvaddrs[0], &sc->sc_regs); 169 } else { 170 if (sbus_bus_map(sa->sa_bustag, 171 sa->sa_slot, sa->sa_offset, sa->sa_size, 172 0, &sc->sc_regs) != 0) { 173 printf("%s: cannot map registers\n", self->dv_xname); 174 return; 175 } 176 } 177 178 /* 179 * Get transfer burst size from PROM and plug it into the 180 * controller registers. This is needed on the Sun4m; do 181 * others need it too? 182 */ 183 sbusburst = ((struct sbus_softc *)parent)->sc_burst; 184 if (sbusburst == 0) 185 sbusburst = SBUS_BURST_32 - 1; /* 1->16 */ 186 187 burst = PROM_getpropint(node,"burst-sizes", -1); 188 if (burst == -1) 189 /* take SBus burst sizes */ 190 burst = sbusburst; 191 192 /* Clamp at parent's burst sizes */ 193 burst &= sbusburst; 194 sc->sc_burst = (burst & SBUS_BURST_32) ? 32 : 195 (burst & SBUS_BURST_16) ? 16 : 0; 196 197 if (strcmp(sc->sc_dev.dv_cfdata->cf_name, "ledma") == 0) { 198 char *cabletype; 199 u_int32_t csr; 200 /* 201 * Check to see which cable type is currently active and 202 * set the appropriate bit in the ledma csr so that it 203 * gets used. If we didn't netboot, the PROM won't have 204 * the "cable-selection" property; default to TP and then 205 * the user can change it via a "media" option to ifconfig. 206 */ 207 cabletype = PROM_getpropstring(node, "cable-selection"); 208 csr = L64854_GCSR(sc); 209 if (strcmp(cabletype, "tpe") == 0) { 210 csr |= E_TP_AUI; 211 } else if (strcmp(cabletype, "aui") == 0) { 212 csr &= ~E_TP_AUI; 213 } else { 214 /* assume TP if nothing there */ 215 csr |= E_TP_AUI; 216 } 217 L64854_SCSR(sc, csr); 218 delay(20000); /* manual says we need a 20ms delay */ 219 sc->sc_channel = L64854_CHANNEL_ENET; 220 } else { 221 sc->sc_channel = L64854_CHANNEL_SCSI; 222 } 223 224 sbus_establish(&dsc->sc_sd, &sc->sc_dev); 225 sbt = dma_alloc_bustag(dsc); 226 lsi64854_attach(sc); 227 228 /* Attach children */ 229 for (node = firstchild(sa->sa_node); node; node = nextsibling(node)) { 230 struct sbus_attach_args sa; 231 sbus_setup_attach_args((struct sbus_softc *)parent, 232 sbt, sc->sc_dmatag, node, &sa); 233 (void) config_found(&sc->sc_dev, (void *)&sa, dmaprint_sbus); 234 sbus_destroy_attach_args(&sa); 235 } 236 } 237 238 void * 239 dmabus_intr_establish(t, pri, level, handler, arg, fastvec) 240 bus_space_tag_t t; 241 int pri; 242 int level; 243 int (*handler) __P((void *)); 244 void *arg; 245 void (*fastvec) __P((void)); /* ignored */ 246 { 247 struct lsi64854_softc *sc = t->cookie; 248 249 /* XXX - for now only le; do esp later */ 250 if (sc->sc_channel == L64854_CHANNEL_ENET) { 251 sc->sc_intrchain = handler; 252 sc->sc_intrchainarg = arg; 253 handler = lsi64854_enet_intr; 254 arg = sc; 255 } 256 return (bus_intr_establish(sc->sc_bustag, pri, level, 257 handler, arg)); 258 } 259 260 bus_space_tag_t 261 dma_alloc_bustag(sc) 262 struct dma_softc *sc; 263 { 264 bus_space_tag_t sbt; 265 266 sbt = (bus_space_tag_t) malloc(sizeof(struct sparc_bus_space_tag), 267 M_DEVBUF, M_NOWAIT|M_ZERO); 268 if (sbt == NULL) 269 return (NULL); 270 271 sbt->cookie = sc; 272 sbt->parent = sc->sc_lsi64854.sc_bustag; 273 sbt->sparc_intr_establish = dmabus_intr_establish; 274 return (sbt); 275 } 276
Indexes created Tue Oct 21 06:10:07 GMT 2025