tcds.c revision 1.1.2.2
1 1.1.2.2 bouyer /* $NetBSD: tcds.c,v 1.1.2.2 2000/11/20 11:43:17 bouyer Exp $ */ 2 1.1.2.2 bouyer 3 1.1.2.2 bouyer /*- 4 1.1.2.2 bouyer * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 1.1.2.2 bouyer * All rights reserved. 6 1.1.2.2 bouyer * 7 1.1.2.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 bouyer * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 1.1.2.2 bouyer * NASA Ames Research Center. 10 1.1.2.2 bouyer * 11 1.1.2.2 bouyer * Redistribution and use in source and binary forms, with or without 12 1.1.2.2 bouyer * modification, are permitted provided that the following conditions 13 1.1.2.2 bouyer * are met: 14 1.1.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 15 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer. 16 1.1.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 17 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 18 1.1.2.2 bouyer * documentation and/or other materials provided with the distribution. 19 1.1.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 20 1.1.2.2 bouyer * must display the following acknowledgement: 21 1.1.2.2 bouyer * This product includes software developed by the NetBSD 22 1.1.2.2 bouyer * Foundation, Inc. and its contributors. 23 1.1.2.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 24 1.1.2.2 bouyer * contributors may be used to endorse or promote products derived 25 1.1.2.2 bouyer * from this software without specific prior written permission. 26 1.1.2.2 bouyer * 27 1.1.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 1.1.2.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 1.1.2.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 1.1.2.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 1.1.2.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 1.1.2.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 1.1.2.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 1.1.2.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 1.1.2.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 1.1.2.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 1.1.2.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 38 1.1.2.2 bouyer */ 39 1.1.2.2 bouyer 40 1.1.2.2 bouyer /* 41 1.1.2.2 bouyer * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. 42 1.1.2.2 bouyer * All rights reserved. 43 1.1.2.2 bouyer * 44 1.1.2.2 bouyer * Author: Keith Bostic, Chris G. Demetriou 45 1.1.2.2 bouyer * 46 1.1.2.2 bouyer * Permission to use, copy, modify and distribute this software and 47 1.1.2.2 bouyer * its documentation is hereby granted, provided that both the copyright 48 1.1.2.2 bouyer * notice and this permission notice appear in all copies of the 49 1.1.2.2 bouyer * software, derivative works or modified versions, and any portions 50 1.1.2.2 bouyer * thereof, and that both notices appear in supporting documentation. 51 1.1.2.2 bouyer * 52 1.1.2.2 bouyer * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 53 1.1.2.2 bouyer * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 54 1.1.2.2 bouyer * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 55 1.1.2.2 bouyer * 56 1.1.2.2 bouyer * Carnegie Mellon requests users of this software to return to 57 1.1.2.2 bouyer * 58 1.1.2.2 bouyer * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 59 1.1.2.2 bouyer * School of Computer Science 60 1.1.2.2 bouyer * Carnegie Mellon University 61 1.1.2.2 bouyer * Pittsburgh PA 15213-3890 62 1.1.2.2 bouyer * 63 1.1.2.2 bouyer * any improvements or extensions that they make and grant Carnegie the 64 1.1.2.2 bouyer * rights to redistribute these changes. 65 1.1.2.2 bouyer */ 66 1.1.2.2 bouyer 67 1.1.2.2 bouyer #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 68 1.1.2.2 bouyer 69 1.1.2.2 bouyer __KERNEL_RCSID(0, "$NetBSD: tcds.c,v 1.1.2.2 2000/11/20 11:43:17 bouyer Exp $"); 70 1.1.2.2 bouyer 71 1.1.2.2 bouyer #include <sys/param.h> 72 1.1.2.2 bouyer #include <sys/kernel.h> 73 1.1.2.2 bouyer #include <sys/systm.h> 74 1.1.2.2 bouyer #include <sys/device.h> 75 1.1.2.2 bouyer #include <sys/malloc.h> 76 1.1.2.2 bouyer 77 1.1.2.2 bouyer #ifdef __alpha__ 78 1.1.2.2 bouyer #include <machine/rpb.h> 79 1.1.2.2 bouyer #endif /* __alpha__ */ 80 1.1.2.2 bouyer 81 1.1.2.2 bouyer #include <dev/scsipi/scsi_all.h> 82 1.1.2.2 bouyer #include <dev/scsipi/scsipi_all.h> 83 1.1.2.2 bouyer #include <dev/scsipi/scsiconf.h> 84 1.1.2.2 bouyer 85 1.1.2.2 bouyer #include <dev/ic/ncr53c9xvar.h> 86 1.1.2.2 bouyer 87 1.1.2.2 bouyer #include <machine/bus.h> 88 1.1.2.2 bouyer 89 1.1.2.2 bouyer #include <dev/tc/tcvar.h> 90 1.1.2.2 bouyer #include <dev/tc/tcdsreg.h> 91 1.1.2.2 bouyer #include <dev/tc/tcdsvar.h> 92 1.1.2.2 bouyer 93 1.1.2.2 bouyer #include "locators.h" 94 1.1.2.2 bouyer 95 1.1.2.2 bouyer struct tcds_softc { 96 1.1.2.2 bouyer struct device sc_dv; 97 1.1.2.2 bouyer bus_space_tag_t sc_bst; 98 1.1.2.2 bouyer bus_space_handle_t sc_bsh; 99 1.1.2.2 bouyer bus_dma_tag_t sc_dmat; 100 1.1.2.2 bouyer void *sc_cookie; 101 1.1.2.2 bouyer int sc_flags; 102 1.1.2.2 bouyer struct tcds_slotconfig sc_slots[2]; 103 1.1.2.2 bouyer }; 104 1.1.2.2 bouyer 105 1.1.2.2 bouyer /* sc_flags */ 106 1.1.2.2 bouyer #define TCDSF_BASEBOARD 0x01 /* baseboard on DEC 3000 */ 107 1.1.2.2 bouyer #define TCDSF_FASTSCSI 0x02 /* supports Fast SCSI */ 108 1.1.2.2 bouyer 109 1.1.2.2 bouyer /* Definition of the driver for autoconfig. */ 110 1.1.2.2 bouyer int tcdsmatch __P((struct device *, struct cfdata *, void *)); 111 1.1.2.2 bouyer void tcdsattach __P((struct device *, struct device *, void *)); 112 1.1.2.2 bouyer int tcdsprint __P((void *, const char *)); 113 1.1.2.2 bouyer int tcdssubmatch __P((struct device *, struct cfdata *, void *)); 114 1.1.2.2 bouyer 115 1.1.2.2 bouyer struct cfattach tcds_ca = { 116 1.1.2.2 bouyer sizeof(struct tcds_softc), tcdsmatch, tcdsattach, 117 1.1.2.2 bouyer }; 118 1.1.2.2 bouyer 119 1.1.2.2 bouyer /*static*/ int tcds_intr __P((void *)); 120 1.1.2.2 bouyer /*static*/ int tcds_intrnull __P((void *)); 121 1.1.2.2 bouyer 122 1.1.2.2 bouyer struct tcds_device { 123 1.1.2.2 bouyer const char *td_name; 124 1.1.2.2 bouyer int td_flags; 125 1.1.2.2 bouyer } tcds_devices[] = { 126 1.1.2.2 bouyer #ifdef __alpha__ 127 1.1.2.2 bouyer { "PMAZ-DS ", TCDSF_BASEBOARD }, 128 1.1.2.2 bouyer { "PMAZ-FS ", TCDSF_BASEBOARD|TCDSF_FASTSCSI }, 129 1.1.2.2 bouyer #endif /* __alpha__ */ 130 1.1.2.2 bouyer { "PMAZB-AA", 0 }, 131 1.1.2.2 bouyer { "PMAZC-AA", TCDSF_FASTSCSI }, 132 1.1.2.2 bouyer { NULL, 0 }, 133 1.1.2.2 bouyer }; 134 1.1.2.2 bouyer 135 1.1.2.2 bouyer struct tcds_device *tcds_lookup __P((const char *)); 136 1.1.2.2 bouyer void tcds_params __P((struct tcds_softc *, int, int *, int *)); 137 1.1.2.2 bouyer 138 1.1.2.2 bouyer struct tcds_device * 139 1.1.2.2 bouyer tcds_lookup(modname) 140 1.1.2.2 bouyer const char *modname; 141 1.1.2.2 bouyer { 142 1.1.2.2 bouyer struct tcds_device *td; 143 1.1.2.2 bouyer 144 1.1.2.2 bouyer for (td = tcds_devices; td->td_name != NULL; td++) 145 1.1.2.2 bouyer if (strncmp(td->td_name, modname, TC_ROM_LLEN) == 0) 146 1.1.2.2 bouyer return (td); 147 1.1.2.2 bouyer 148 1.1.2.2 bouyer return (NULL); 149 1.1.2.2 bouyer } 150 1.1.2.2 bouyer 151 1.1.2.2 bouyer int 152 1.1.2.2 bouyer tcdsmatch(parent, cfdata, aux) 153 1.1.2.2 bouyer struct device *parent; 154 1.1.2.2 bouyer struct cfdata *cfdata; 155 1.1.2.2 bouyer void *aux; 156 1.1.2.2 bouyer { 157 1.1.2.2 bouyer struct tc_attach_args *ta = aux; 158 1.1.2.2 bouyer 159 1.1.2.2 bouyer return (tcds_lookup(ta->ta_modname) != NULL); 160 1.1.2.2 bouyer } 161 1.1.2.2 bouyer 162 1.1.2.2 bouyer void 163 1.1.2.2 bouyer tcdsattach(parent, self, aux) 164 1.1.2.2 bouyer struct device *parent, *self; 165 1.1.2.2 bouyer void *aux; 166 1.1.2.2 bouyer { 167 1.1.2.2 bouyer struct tcds_softc *sc = (struct tcds_softc *)self; 168 1.1.2.2 bouyer struct tc_attach_args *ta = aux; 169 1.1.2.2 bouyer struct tcdsdev_attach_args tcdsdev; 170 1.1.2.2 bouyer struct tcds_slotconfig *slotc; 171 1.1.2.2 bouyer struct tcds_device *td; 172 1.1.2.2 bouyer bus_space_handle_t sbsh[2]; 173 1.1.2.2 bouyer int i, gpi2; 174 1.1.2.2 bouyer const struct evcnt *pevcnt; 175 1.1.2.2 bouyer char *cp; 176 1.1.2.2 bouyer 177 1.1.2.2 bouyer td = tcds_lookup(ta->ta_modname); 178 1.1.2.2 bouyer if (td == NULL) 179 1.1.2.2 bouyer panic("\ntcdsattach: impossible"); 180 1.1.2.2 bouyer 181 1.1.2.2 bouyer printf(": TurboChannel Dual SCSI"); 182 1.1.2.2 bouyer if (td->td_flags & TCDSF_BASEBOARD) 183 1.1.2.2 bouyer printf(" (baseboard)"); 184 1.1.2.2 bouyer printf("\n"); 185 1.1.2.2 bouyer 186 1.1.2.2 bouyer sc->sc_flags = td->td_flags; 187 1.1.2.2 bouyer 188 1.1.2.2 bouyer sc->sc_bst = ta->ta_memt; 189 1.1.2.2 bouyer sc->sc_dmat = ta->ta_dmat; 190 1.1.2.2 bouyer 191 1.1.2.2 bouyer /* 192 1.1.2.2 bouyer * Map the device. 193 1.1.2.2 bouyer */ 194 1.1.2.2 bouyer if (bus_space_map(sc->sc_bst, ta->ta_addr, 195 1.1.2.2 bouyer (TCDS_SCSI1_OFFSET + 0x100), 0, &sc->sc_bsh)) { 196 1.1.2.2 bouyer printf("%s: unable to map device\n", sc->sc_dv.dv_xname); 197 1.1.2.2 bouyer return; 198 1.1.2.2 bouyer } 199 1.1.2.2 bouyer 200 1.1.2.2 bouyer /* 201 1.1.2.2 bouyer * Now, slice off two subregions for the individual NCR SCSI chips. 202 1.1.2.2 bouyer */ 203 1.1.2.2 bouyer if (bus_space_subregion(sc->sc_bst, sc->sc_bsh, TCDS_SCSI0_OFFSET, 204 1.1.2.2 bouyer 0x100, &sbsh[0]) || 205 1.1.2.2 bouyer bus_space_subregion(sc->sc_bst, sc->sc_bsh, TCDS_SCSI1_OFFSET, 206 1.1.2.2 bouyer 0x100, &sbsh[1])) { 207 1.1.2.2 bouyer printf("%s: unable to subregion SCSI chip space\n", 208 1.1.2.2 bouyer sc->sc_dv.dv_xname); 209 1.1.2.2 bouyer return; 210 1.1.2.2 bouyer } 211 1.1.2.2 bouyer 212 1.1.2.2 bouyer sc->sc_cookie = ta->ta_cookie; 213 1.1.2.2 bouyer 214 1.1.2.2 bouyer pevcnt = tc_intr_evcnt(parent, sc->sc_cookie); 215 1.1.2.2 bouyer tc_intr_establish(parent, sc->sc_cookie, TC_IPL_BIO, tcds_intr, sc); 216 1.1.2.2 bouyer 217 1.1.2.2 bouyer /* 218 1.1.2.2 bouyer * XXX 219 1.1.2.2 bouyer * IMER apparently has some random (or, not so random, but still 220 1.1.2.2 bouyer * not useful) bits set in it when the system boots. Clear it. 221 1.1.2.2 bouyer */ 222 1.1.2.2 bouyer bus_space_write_4(sc->sc_bst, sc->sc_bsh, TCDS_IMER, 0); 223 1.1.2.2 bouyer 224 1.1.2.2 bouyer /* XXX Initial contents of CIR? */ 225 1.1.2.2 bouyer 226 1.1.2.2 bouyer /* 227 1.1.2.2 bouyer * Remember if GPI2 is set in the CIR; we'll need it later. 228 1.1.2.2 bouyer */ 229 1.1.2.2 bouyer gpi2 = (bus_space_read_4(sc->sc_bst, sc->sc_bsh, TCDS_CIR) & 230 1.1.2.2 bouyer TCDS_CIR_GPI_2) != 0; 231 1.1.2.2 bouyer 232 1.1.2.2 bouyer /* 233 1.1.2.2 bouyer * Set up the per-slot defintions for later use. 234 1.1.2.2 bouyer */ 235 1.1.2.2 bouyer 236 1.1.2.2 bouyer /* fill in common information first */ 237 1.1.2.2 bouyer for (i = 0; i < 2; i++) { 238 1.1.2.2 bouyer slotc = &sc->sc_slots[i]; 239 1.1.2.2 bouyer 240 1.1.2.2 bouyer bzero(slotc, sizeof *slotc); /* clear everything */ 241 1.1.2.2 bouyer 242 1.1.2.2 bouyer cp = malloc(12, M_DEVBUF, M_NOWAIT); 243 1.1.2.2 bouyer if (cp == NULL) 244 1.1.2.2 bouyer panic("tcdsattach"); 245 1.1.2.2 bouyer sprintf(cp, "chip %d", i); 246 1.1.2.2 bouyer evcnt_attach_dynamic(&slotc->sc_evcnt, EVCNT_TYPE_INTR, 247 1.1.2.2 bouyer pevcnt, sc->sc_dv.dv_xname, cp); 248 1.1.2.2 bouyer 249 1.1.2.2 bouyer slotc->sc_slot = i; 250 1.1.2.2 bouyer slotc->sc_bst = sc->sc_bst; 251 1.1.2.2 bouyer slotc->sc_bsh = sc->sc_bsh; 252 1.1.2.2 bouyer slotc->sc_intrhand = tcds_intrnull; 253 1.1.2.2 bouyer slotc->sc_intrarg = (void *)(long)i; 254 1.1.2.2 bouyer } 255 1.1.2.2 bouyer 256 1.1.2.2 bouyer /* information for slot 0 */ 257 1.1.2.2 bouyer slotc = &sc->sc_slots[0]; 258 1.1.2.2 bouyer slotc->sc_resetbits = TCDS_CIR_SCSI0_RESET; 259 1.1.2.2 bouyer slotc->sc_intrmaskbits = 260 1.1.2.2 bouyer TCDS_IMER_SCSI0_MASK | TCDS_IMER_SCSI0_ENB; 261 1.1.2.2 bouyer slotc->sc_intrbits = TCDS_CIR_SCSI0_INT; 262 1.1.2.2 bouyer slotc->sc_dmabits = TCDS_CIR_SCSI0_DMAENA; 263 1.1.2.2 bouyer slotc->sc_errorbits = 0; /* XXX */ 264 1.1.2.2 bouyer slotc->sc_sda = TCDS_SCSI0_DMA_ADDR; 265 1.1.2.2 bouyer slotc->sc_dic = TCDS_SCSI0_DMA_INTR; 266 1.1.2.2 bouyer slotc->sc_dud0 = TCDS_SCSI0_DMA_DUD0; 267 1.1.2.2 bouyer slotc->sc_dud1 = TCDS_SCSI0_DMA_DUD1; 268 1.1.2.2 bouyer 269 1.1.2.2 bouyer /* information for slot 1 */ 270 1.1.2.2 bouyer slotc = &sc->sc_slots[1]; 271 1.1.2.2 bouyer slotc->sc_resetbits = TCDS_CIR_SCSI1_RESET; 272 1.1.2.2 bouyer slotc->sc_intrmaskbits = 273 1.1.2.2 bouyer TCDS_IMER_SCSI1_MASK | TCDS_IMER_SCSI1_ENB; 274 1.1.2.2 bouyer slotc->sc_intrbits = TCDS_CIR_SCSI1_INT; 275 1.1.2.2 bouyer slotc->sc_dmabits = TCDS_CIR_SCSI1_DMAENA; 276 1.1.2.2 bouyer slotc->sc_errorbits = 0; /* XXX */ 277 1.1.2.2 bouyer slotc->sc_sda = TCDS_SCSI1_DMA_ADDR; 278 1.1.2.2 bouyer slotc->sc_dic = TCDS_SCSI1_DMA_INTR; 279 1.1.2.2 bouyer slotc->sc_dud0 = TCDS_SCSI1_DMA_DUD0; 280 1.1.2.2 bouyer slotc->sc_dud1 = TCDS_SCSI1_DMA_DUD1; 281 1.1.2.2 bouyer 282 1.1.2.2 bouyer /* find the hardware attached to the TCDS ASIC */ 283 1.1.2.2 bouyer for (i = 0; i < 2; i++) { 284 1.1.2.2 bouyer tcds_params(sc, i, &tcdsdev.tcdsda_id, 285 1.1.2.2 bouyer &tcdsdev.tcdsda_fast); 286 1.1.2.2 bouyer 287 1.1.2.2 bouyer tcdsdev.tcdsda_bst = sc->sc_bst; 288 1.1.2.2 bouyer tcdsdev.tcdsda_bsh = sbsh[i]; 289 1.1.2.2 bouyer tcdsdev.tcdsda_dmat = sc->sc_dmat; 290 1.1.2.2 bouyer tcdsdev.tcdsda_chip = i; 291 1.1.2.2 bouyer tcdsdev.tcdsda_sc = &sc->sc_slots[i]; 292 1.1.2.2 bouyer /* 293 1.1.2.2 bouyer * Determine the chip frequency. TCDSF_FASTSCSI will be set 294 1.1.2.2 bouyer * for TC option cards. For baseboard chips, GPI2 is set, for a 295 1.1.2.2 bouyer * 25MHz clock, else a 40MHz clock. 296 1.1.2.2 bouyer */ 297 1.1.2.2 bouyer if ((sc->sc_flags & TCDSF_BASEBOARD && gpi2 == 0) || 298 1.1.2.2 bouyer sc->sc_flags & TCDSF_FASTSCSI) { 299 1.1.2.2 bouyer tcdsdev.tcdsda_freq = 40000000; 300 1.1.2.2 bouyer tcdsdev.tcdsda_period = tcdsdev.tcdsda_fast ? 4 : 8; 301 1.1.2.2 bouyer } else { 302 1.1.2.2 bouyer tcdsdev.tcdsda_freq = 25000000; 303 1.1.2.2 bouyer tcdsdev.tcdsda_period = 5; 304 1.1.2.2 bouyer } 305 1.1.2.2 bouyer if (sc->sc_flags & TCDSF_BASEBOARD) 306 1.1.2.2 bouyer tcdsdev.tcdsda_variant = NCR_VARIANT_NCR53C94; 307 1.1.2.2 bouyer else 308 1.1.2.2 bouyer tcdsdev.tcdsda_variant = NCR_VARIANT_NCR53C96; 309 1.1.2.2 bouyer 310 1.1.2.2 bouyer tcds_scsi_reset(tcdsdev.tcdsda_sc); 311 1.1.2.2 bouyer 312 1.1.2.2 bouyer config_found_sm(self, &tcdsdev, tcdsprint, tcdssubmatch); 313 1.1.2.2 bouyer #ifdef __alpha__ 314 1.1.2.2 bouyer /* 315 1.1.2.2 bouyer * The second SCSI chip isn't present on the baseboard TCDS 316 1.1.2.2 bouyer * on the DEC Alpha 3000/300 series. 317 1.1.2.2 bouyer */ 318 1.1.2.2 bouyer if (sc->sc_flags & TCDSF_BASEBOARD && 319 1.1.2.2 bouyer cputype == ST_DEC_3000_300) 320 1.1.2.2 bouyer break; 321 1.1.2.2 bouyer #endif /* __alpha__ */ 322 1.1.2.2 bouyer } 323 1.1.2.2 bouyer } 324 1.1.2.2 bouyer 325 1.1.2.2 bouyer int 326 1.1.2.2 bouyer tcdssubmatch(parent, cf, aux) 327 1.1.2.2 bouyer struct device *parent; 328 1.1.2.2 bouyer struct cfdata *cf; 329 1.1.2.2 bouyer void *aux; 330 1.1.2.2 bouyer { 331 1.1.2.2 bouyer struct tcdsdev_attach_args *tcdsdev = aux; 332 1.1.2.2 bouyer 333 1.1.2.2 bouyer if (cf->cf_loc[TCDSCF_CHIP] != TCDSCF_CHIP_DEFAULT && 334 1.1.2.2 bouyer cf->cf_loc[TCDSCF_CHIP] != tcdsdev->tcdsda_chip) 335 1.1.2.2 bouyer return (0); 336 1.1.2.2 bouyer 337 1.1.2.2 bouyer return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 338 1.1.2.2 bouyer } 339 1.1.2.2 bouyer 340 1.1.2.2 bouyer int 341 1.1.2.2 bouyer tcdsprint(aux, pnp) 342 1.1.2.2 bouyer void *aux; 343 1.1.2.2 bouyer const char *pnp; 344 1.1.2.2 bouyer { 345 1.1.2.2 bouyer struct tcdsdev_attach_args *tcdsdev = aux; 346 1.1.2.2 bouyer 347 1.1.2.2 bouyer /* Only ASCs can attach to TCDSs; easy. */ 348 1.1.2.2 bouyer if (pnp) 349 1.1.2.2 bouyer printf("asc at %s", pnp); 350 1.1.2.2 bouyer 351 1.1.2.2 bouyer printf(" chip %d", tcdsdev->tcdsda_chip); 352 1.1.2.2 bouyer 353 1.1.2.2 bouyer return (UNCONF); 354 1.1.2.2 bouyer } 355 1.1.2.2 bouyer 356 1.1.2.2 bouyer void 357 1.1.2.2 bouyer tcds_intr_establish(tcds, slot, func, arg) 358 1.1.2.2 bouyer struct device *tcds; 359 1.1.2.2 bouyer int slot; 360 1.1.2.2 bouyer int (*func) __P((void *)); 361 1.1.2.2 bouyer void *arg; 362 1.1.2.2 bouyer { 363 1.1.2.2 bouyer struct tcds_softc *sc = (struct tcds_softc *)tcds; 364 1.1.2.2 bouyer 365 1.1.2.2 bouyer if (sc->sc_slots[slot].sc_intrhand != tcds_intrnull) 366 1.1.2.2 bouyer panic("tcds_intr_establish: chip %d twice", slot); 367 1.1.2.2 bouyer 368 1.1.2.2 bouyer sc->sc_slots[slot].sc_intrhand = func; 369 1.1.2.2 bouyer sc->sc_slots[slot].sc_intrarg = arg; 370 1.1.2.2 bouyer tcds_scsi_reset(&sc->sc_slots[slot]); 371 1.1.2.2 bouyer } 372 1.1.2.2 bouyer 373 1.1.2.2 bouyer void 374 1.1.2.2 bouyer tcds_intr_disestablish(tcds, slot) 375 1.1.2.2 bouyer struct device *tcds; 376 1.1.2.2 bouyer int slot; 377 1.1.2.2 bouyer { 378 1.1.2.2 bouyer struct tcds_softc *sc = (struct tcds_softc *)tcds; 379 1.1.2.2 bouyer 380 1.1.2.2 bouyer if (sc->sc_slots[slot].sc_intrhand == tcds_intrnull) 381 1.1.2.2 bouyer panic("tcds_intr_disestablish: chip %d missing intr", 382 1.1.2.2 bouyer slot); 383 1.1.2.2 bouyer 384 1.1.2.2 bouyer sc->sc_slots[slot].sc_intrhand = tcds_intrnull; 385 1.1.2.2 bouyer sc->sc_slots[slot].sc_intrarg = (void *)(u_long)slot; 386 1.1.2.2 bouyer 387 1.1.2.2 bouyer tcds_dma_enable(&sc->sc_slots[slot], 0); 388 1.1.2.2 bouyer tcds_scsi_enable(&sc->sc_slots[slot], 0); 389 1.1.2.2 bouyer } 390 1.1.2.2 bouyer 391 1.1.2.2 bouyer int 392 1.1.2.2 bouyer tcds_intrnull(val) 393 1.1.2.2 bouyer void *val; 394 1.1.2.2 bouyer { 395 1.1.2.2 bouyer 396 1.1.2.2 bouyer panic("tcds_intrnull: uncaught TCDS intr for chip %lu\n", 397 1.1.2.2 bouyer (u_long)val); 398 1.1.2.2 bouyer } 399 1.1.2.2 bouyer 400 1.1.2.2 bouyer void 401 1.1.2.2 bouyer tcds_scsi_reset(sc) 402 1.1.2.2 bouyer struct tcds_slotconfig *sc; 403 1.1.2.2 bouyer { 404 1.1.2.2 bouyer u_int32_t cir; 405 1.1.2.2 bouyer 406 1.1.2.2 bouyer tcds_dma_enable(sc, 0); 407 1.1.2.2 bouyer tcds_scsi_enable(sc, 0); 408 1.1.2.2 bouyer 409 1.1.2.2 bouyer cir = bus_space_read_4(sc->sc_bst, sc->sc_bsh, TCDS_CIR); 410 1.1.2.2 bouyer TCDS_CIR_CLR(cir, sc->sc_resetbits); 411 1.1.2.2 bouyer bus_space_write_4(sc->sc_bst, sc->sc_bsh, TCDS_CIR, cir); 412 1.1.2.2 bouyer 413 1.1.2.2 bouyer DELAY(1); 414 1.1.2.2 bouyer 415 1.1.2.2 bouyer cir = bus_space_read_4(sc->sc_bst, sc->sc_bsh, TCDS_CIR); 416 1.1.2.2 bouyer TCDS_CIR_SET(cir, sc->sc_resetbits); 417 1.1.2.2 bouyer bus_space_write_4(sc->sc_bst, sc->sc_bsh, TCDS_CIR, cir); 418 1.1.2.2 bouyer 419 1.1.2.2 bouyer tcds_scsi_enable(sc, 1); 420 1.1.2.2 bouyer tcds_dma_enable(sc, 1); 421 1.1.2.2 bouyer } 422 1.1.2.2 bouyer 423 1.1.2.2 bouyer void 424 1.1.2.2 bouyer tcds_scsi_enable(sc, on) 425 1.1.2.2 bouyer struct tcds_slotconfig *sc; 426 1.1.2.2 bouyer int on; 427 1.1.2.2 bouyer { 428 1.1.2.2 bouyer u_int32_t imer; 429 1.1.2.2 bouyer 430 1.1.2.2 bouyer imer = bus_space_read_4(sc->sc_bst, sc->sc_bsh, TCDS_IMER); 431 1.1.2.2 bouyer 432 1.1.2.2 bouyer if (on) 433 1.1.2.2 bouyer imer |= sc->sc_intrmaskbits; 434 1.1.2.2 bouyer else 435 1.1.2.2 bouyer imer &= ~sc->sc_intrmaskbits; 436 1.1.2.2 bouyer 437 1.1.2.2 bouyer bus_space_write_4(sc->sc_bst, sc->sc_bsh, TCDS_IMER, imer); 438 1.1.2.2 bouyer } 439 1.1.2.2 bouyer 440 1.1.2.2 bouyer void 441 1.1.2.2 bouyer tcds_dma_enable(sc, on) 442 1.1.2.2 bouyer struct tcds_slotconfig *sc; 443 1.1.2.2 bouyer int on; 444 1.1.2.2 bouyer { 445 1.1.2.2 bouyer u_int32_t cir; 446 1.1.2.2 bouyer 447 1.1.2.2 bouyer cir = bus_space_read_4(sc->sc_bst, sc->sc_bsh, TCDS_CIR); 448 1.1.2.2 bouyer 449 1.1.2.2 bouyer /* XXX Clear/set IOSLOT/PBS bits. */ 450 1.1.2.2 bouyer if (on) 451 1.1.2.2 bouyer TCDS_CIR_SET(cir, sc->sc_dmabits); 452 1.1.2.2 bouyer else 453 1.1.2.2 bouyer TCDS_CIR_CLR(cir, sc->sc_dmabits); 454 1.1.2.2 bouyer 455 1.1.2.2 bouyer bus_space_write_4(sc->sc_bst, sc->sc_bsh, TCDS_CIR, cir); 456 1.1.2.2 bouyer } 457 1.1.2.2 bouyer 458 1.1.2.2 bouyer int 459 1.1.2.2 bouyer tcds_scsi_isintr(sc, clear) 460 1.1.2.2 bouyer struct tcds_slotconfig *sc; 461 1.1.2.2 bouyer int clear; 462 1.1.2.2 bouyer { 463 1.1.2.2 bouyer u_int32_t cir; 464 1.1.2.2 bouyer 465 1.1.2.2 bouyer cir = bus_space_read_4(sc->sc_bst, sc->sc_bsh, TCDS_CIR); 466 1.1.2.2 bouyer 467 1.1.2.2 bouyer if ((cir & sc->sc_intrbits) != 0) { 468 1.1.2.2 bouyer if (clear) { 469 1.1.2.2 bouyer TCDS_CIR_CLR(cir, sc->sc_intrbits); 470 1.1.2.2 bouyer bus_space_write_4(sc->sc_bst, sc->sc_bsh, TCDS_CIR, 471 1.1.2.2 bouyer cir); 472 1.1.2.2 bouyer } 473 1.1.2.2 bouyer return (1); 474 1.1.2.2 bouyer } else 475 1.1.2.2 bouyer return (0); 476 1.1.2.2 bouyer } 477 1.1.2.2 bouyer 478 1.1.2.2 bouyer int 479 1.1.2.2 bouyer tcds_scsi_iserr(sc) 480 1.1.2.2 bouyer struct tcds_slotconfig *sc; 481 1.1.2.2 bouyer { 482 1.1.2.2 bouyer u_int32_t cir; 483 1.1.2.2 bouyer 484 1.1.2.2 bouyer cir = bus_space_read_4(sc->sc_bst, sc->sc_bsh, TCDS_CIR); 485 1.1.2.2 bouyer return ((cir & sc->sc_errorbits) != 0); 486 1.1.2.2 bouyer } 487 1.1.2.2 bouyer 488 1.1.2.2 bouyer int 489 1.1.2.2 bouyer tcds_intr(arg) 490 1.1.2.2 bouyer void *arg; 491 1.1.2.2 bouyer { 492 1.1.2.2 bouyer struct tcds_softc *sc = arg; 493 1.1.2.2 bouyer u_int32_t ir, ir0; 494 1.1.2.2 bouyer 495 1.1.2.2 bouyer /* 496 1.1.2.2 bouyer * XXX 497 1.1.2.2 bouyer * Copy and clear (gag!) the interrupts. 498 1.1.2.2 bouyer */ 499 1.1.2.2 bouyer ir = ir0 = bus_space_read_4(sc->sc_bst, sc->sc_bsh, TCDS_CIR); 500 1.1.2.2 bouyer TCDS_CIR_CLR(ir0, TCDS_CIR_ALLINTR); 501 1.1.2.2 bouyer bus_space_write_4(sc->sc_bst, sc->sc_bsh, TCDS_CIR, ir0); 502 1.1.2.2 bouyer tc_syncbus(); 503 1.1.2.2 bouyer 504 1.1.2.2 bouyer #define INCRINTRCNT(slot) sc->sc_slots[slot].sc_evcnt.ev_count++ 505 1.1.2.2 bouyer 506 1.1.2.2 bouyer #define CHECKINTR(slot) \ 507 1.1.2.2 bouyer if (ir & sc->sc_slots[slot].sc_intrbits) { \ 508 1.1.2.2 bouyer INCRINTRCNT(slot); \ 509 1.1.2.2 bouyer (void)(*sc->sc_slots[slot].sc_intrhand) \ 510 1.1.2.2 bouyer (sc->sc_slots[slot].sc_intrarg); \ 511 1.1.2.2 bouyer } 512 1.1.2.2 bouyer CHECKINTR(0); 513 1.1.2.2 bouyer CHECKINTR(1); 514 1.1.2.2 bouyer #undef CHECKINTR 515 1.1.2.2 bouyer 516 1.1.2.2 bouyer #ifdef DIAGNOSTIC 517 1.1.2.2 bouyer /* 518 1.1.2.2 bouyer * Interrupts not currently handled, but would like to know if they 519 1.1.2.2 bouyer * occur. 520 1.1.2.2 bouyer * 521 1.1.2.2 bouyer * XXX 522 1.1.2.2 bouyer * Don't know if we have to set the interrupt mask and enable bits 523 1.1.2.2 bouyer * in the IMER to allow some of them to happen? 524 1.1.2.2 bouyer */ 525 1.1.2.2 bouyer #define PRINTINTR(msg, bits) \ 526 1.1.2.2 bouyer if (ir & bits) \ 527 1.1.2.2 bouyer printf("%s: %s", sc->sc_dv.dv_xname, msg); 528 1.1.2.2 bouyer PRINTINTR("SCSI0 DREQ interrupt.\n", TCDS_CIR_SCSI0_DREQ); 529 1.1.2.2 bouyer PRINTINTR("SCSI1 DREQ interrupt.\n", TCDS_CIR_SCSI1_DREQ); 530 1.1.2.2 bouyer PRINTINTR("SCSI0 prefetch interrupt.\n", TCDS_CIR_SCSI0_PREFETCH); 531 1.1.2.2 bouyer PRINTINTR("SCSI1 prefetch interrupt.\n", TCDS_CIR_SCSI1_PREFETCH); 532 1.1.2.2 bouyer PRINTINTR("SCSI0 DMA error.\n", TCDS_CIR_SCSI0_DMA); 533 1.1.2.2 bouyer PRINTINTR("SCSI1 DMA error.\n", TCDS_CIR_SCSI1_DMA); 534 1.1.2.2 bouyer PRINTINTR("SCSI0 DB parity error.\n", TCDS_CIR_SCSI0_DB); 535 1.1.2.2 bouyer PRINTINTR("SCSI1 DB parity error.\n", TCDS_CIR_SCSI1_DB); 536 1.1.2.2 bouyer PRINTINTR("SCSI0 DMA buffer parity error.\n", TCDS_CIR_SCSI0_DMAB_PAR); 537 1.1.2.2 bouyer PRINTINTR("SCSI1 DMA buffer parity error.\n", TCDS_CIR_SCSI1_DMAB_PAR); 538 1.1.2.2 bouyer PRINTINTR("SCSI0 DMA read parity error.\n", TCDS_CIR_SCSI0_DMAR_PAR); 539 1.1.2.2 bouyer PRINTINTR("SCSI1 DMA read parity error.\n", TCDS_CIR_SCSI1_DMAR_PAR); 540 1.1.2.2 bouyer PRINTINTR("TC write parity error.\n", TCDS_CIR_TCIOW_PAR); 541 1.1.2.2 bouyer PRINTINTR("TC I/O address parity error.\n", TCDS_CIR_TCIOA_PAR); 542 1.1.2.2 bouyer #undef PRINTINTR 543 1.1.2.2 bouyer #endif 544 1.1.2.2 bouyer 545 1.1.2.2 bouyer /* 546 1.1.2.2 bouyer * XXX 547 1.1.2.2 bouyer * The MACH source had this, with the comment: 548 1.1.2.2 bouyer * This is wrong, but machine keeps dying. 549 1.1.2.2 bouyer */ 550 1.1.2.2 bouyer DELAY(1); 551 1.1.2.2 bouyer 552 1.1.2.2 bouyer return (1); 553 1.1.2.2 bouyer } 554 1.1.2.2 bouyer 555 1.1.2.2 bouyer void 556 1.1.2.2 bouyer tcds_params(sc, chip, idp, fastp) 557 1.1.2.2 bouyer struct tcds_softc *sc; 558 1.1.2.2 bouyer int chip, *idp, *fastp; 559 1.1.2.2 bouyer { 560 1.1.2.2 bouyer int id, fast; 561 1.1.2.2 bouyer u_int32_t ids; 562 1.1.2.2 bouyer 563 1.1.2.2 bouyer #ifdef __alpha__ 564 1.1.2.2 bouyer if (sc->sc_flags & TCDSF_BASEBOARD) { 565 1.1.2.2 bouyer extern u_int8_t dec_3000_scsiid[], dec_3000_scsifast[]; 566 1.1.2.2 bouyer 567 1.1.2.2 bouyer id = dec_3000_scsiid[chip]; 568 1.1.2.2 bouyer fast = dec_3000_scsifast[chip]; 569 1.1.2.2 bouyer } else 570 1.1.2.2 bouyer #endif /* __alpha__ */ 571 1.1.2.2 bouyer { 572 1.1.2.2 bouyer /* 573 1.1.2.2 bouyer * SCSI IDs are stored in the EEPROM, along with whether or 574 1.1.2.2 bouyer * not the device is "fast". Chip 0 is the high nibble, 575 1.1.2.2 bouyer * chip 1 the low nibble. 576 1.1.2.2 bouyer */ 577 1.1.2.2 bouyer ids = bus_space_read_4(sc->sc_bst, sc->sc_bsh, TCDS_EEPROM_IDS); 578 1.1.2.2 bouyer if (chip == 0) 579 1.1.2.2 bouyer ids >>= 4; 580 1.1.2.2 bouyer 581 1.1.2.2 bouyer id = ids & 0x7; 582 1.1.2.2 bouyer fast = ids & 0x8; 583 1.1.2.2 bouyer } 584 1.1.2.2 bouyer 585 1.1.2.2 bouyer if (id < 0 || id > 7) { 586 1.1.2.2 bouyer printf("%s: WARNING: bad SCSI ID %d for chip %d, using 7\n", 587 1.1.2.2 bouyer sc->sc_dv.dv_xname, id, chip); 588 1.1.2.2 bouyer id = 7; 589 1.1.2.2 bouyer } 590 1.1.2.2 bouyer 591 1.1.2.2 bouyer if (fast) 592 1.1.2.2 bouyer printf("%s: fast mode set for chip %d\n", 593 1.1.2.2 bouyer sc->sc_dv.dv_xname, chip); 594 1.1.2.2 bouyer 595 1.1.2.2 bouyer *idp = id; 596 1.1.2.2 bouyer *fastp = fast; 597 1.1.2.2 bouyer } 598
Indexes created Fri Oct 03 02:09:57 GMT 2025