ioasic.c revision 1.6
1 /* $NetBSD: ioasic.c,v 1.6 2000/01/10 01:57:41 simonb Exp $ */ 2 3 /* 4 * Copyright (c) 1994, 1995 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Keith Bostic, Chris G. Demetriou, Jonathan Stone 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 31 __KERNEL_RCSID(0, "$NetBSD: ioasic.c,v 1.6 2000/01/10 01:57:41 simonb Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/device.h> 36 37 #include <machine/bus.h> 38 #include <dev/tc/tcvar.h> 39 #include <dev/tc/ioasicvar.h> 40 41 #include <pmax/pmax/pmaxtype.h> 42 #include <pmax/pmax/asic.h> 43 #include <pmax/pmax/kmin.h> 44 #include <pmax/pmax/maxine.h> 45 #include <pmax/pmax/kn03.h> 46 #include <pmax/pmax/turbochannel.h> /* interrupt enable declaration */ 47 48 #include "opt_dec_3min.h" 49 #include "opt_dec_maxine.h" 50 #include "opt_dec_3maxplus.h" 51 52 #define C(x) ((void *)(x)) 53 #define ARRAY_SIZEOF(x) (sizeof((x)) / sizeof((x)[0])) 54 55 #if defined(DEC_3MIN) 56 static struct ioasic_dev kmin_ioasic_devs[] = { 57 { "lance", 0x0C0000, C(KMIN_LANCE_SLOT), IOASIC_INTR_LANCE, }, 58 { "scc", 0x100000, C(KMIN_SCC0_SLOT), IOASIC_INTR_SCC_0, }, 59 { "scc", 0x180000, C(KMIN_SCC1_SLOT), IOASIC_INTR_SCC_1, }, 60 { "mc146818", 0x200000, C(-1), 0 }, 61 { "asc", 0x300000, C(KMIN_SCSI_SLOT), IOASIC_INTR_SCSI, }, 62 }; 63 static int kmin_builtin_ndevs = ARRAY_SIZEOF(kmin_ioasic_devs); 64 static int kmin_ioasic_ndevs = ARRAY_SIZEOF(kmin_ioasic_devs); 65 #endif 66 67 #if defined(DEC_MAXINE) 68 static struct ioasic_dev xine_ioasic_devs[] = { 69 { "lance", 0x0C0000, C(XINE_LANCE_SLOT), IOASIC_INTR_LANCE }, 70 { "scc", 0x100000, C(XINE_SCC0_SLOT), IOASIC_INTR_SCC_0 }, 71 { "mc146818", 0x200000, C(-1), 0 }, 72 { "isdn", 0x240000, C(XINE_ISDN_SLOT), XINE_INTR_ISDN, }, 73 { "dtop", 0x280000, C(XINE_DTOP_SLOT), XINE_INTR_DTOP, }, 74 { "fdc", 0x2C0000, C(XINE_FLOPPY_SLOT), 0 }, 75 { "asc", 0x300000, C(XINE_SCSI_SLOT), IOASIC_INTR_SCSI, }, 76 { "(TC0)", 0x0, C(0), XINE_INTR_TC_0, }, 77 { "(TC1)", 0x0, C(1), XINE_INTR_TC_1, }, 78 { "(TC2)", 0x0, C(2), XINE_INTR_VINT, }, 79 }; 80 static int xine_builtin_ndevs = ARRAY_SIZEOF(xine_ioasic_devs) - 3; 81 static int xine_ioasic_ndevs = ARRAY_SIZEOF(xine_ioasic_devs); 82 #endif 83 84 #if defined(DEC_3MAXPLUS) 85 static struct ioasic_dev kn03_ioasic_devs[] = { 86 { "lance", 0x0C0000, C(KN03_LANCE_SLOT), IOASIC_INTR_LANCE, }, 87 { "z8530 ", 0x100000, C(KN03_SCC0_SLOT), IOASIC_INTR_SCC_0, }, 88 { "z8530 ", 0x180000, C(KN03_SCC1_SLOT), IOASIC_INTR_SCC_1, }, 89 { "mc146818", 0x200000, C(-1), 0, }, 90 { "asc", 0x300000, C(KN03_SCSI_SLOT), IOASIC_INTR_SCSI, }, 91 { "(TC0)", 0x0, C(0), KN03_INTR_TC_0, }, 92 { "(TC1)", 0x0, C(1), KN03_INTR_TC_1, }, 93 { "(TC2)", 0x0, C(2), KN03_INTR_TC_2, }, 94 }; 95 static int kn03_builtin_ndevs = ARRAY_SIZEOF(kn03_ioasic_devs) - 3; 96 static int kn03_ioasic_ndevs = ARRAY_SIZEOF(kn03_ioasic_devs); 97 #endif 98 99 static int ioasicmatch __P((struct device *, struct cfdata *, void *)); 100 static void ioasicattach __P((struct device *, struct device *, void *)); 101 102 const struct cfattach ioasic_ca = { 103 sizeof(struct ioasic_softc), ioasicmatch, ioasicattach 104 }; 105 106 tc_addr_t ioasic_base = 0; 107 108 static int 109 ioasicmatch(parent, cfdata, aux) 110 struct device *parent; 111 struct cfdata *cfdata; 112 void *aux; 113 { 114 struct tc_attach_args *ta = aux; 115 116 /* Make sure that we're looking for this type of device. */ 117 if (strncmp("IOCTL ", ta->ta_modname, TC_ROM_LLEN)) 118 return (0); 119 120 if (cfdata->cf_unit > 0) 121 return (0); 122 123 return (1); 124 } 125 126 static void 127 ioasicattach(parent, self, aux) 128 struct device *parent, *self; 129 void *aux; 130 { 131 struct ioasic_softc *sc = (struct ioasic_softc *)self; 132 struct tc_attach_args *ta = aux; 133 struct ioasic_dev *ioasic_devs; 134 int ioasic_ndevs, builtin_ndevs; 135 int i, imsk; 136 137 sc->sc_bst = ta->ta_memt; 138 if (bus_space_map(ta->ta_memt, ta->ta_addr, 139 0x400000, 0, &sc->sc_bsh)) { 140 printf("%s: unable to map device\n", sc->sc_dv.dv_xname); 141 return; 142 } 143 sc->sc_dmat = ta->ta_dmat; 144 sc->sc_cookie = ta->ta_cookie; 145 146 sc->sc_base = ta->ta_addr; /* XXX XXX XXX */ 147 148 printf("\n"); 149 150 switch (systype) { 151 #if defined(DEC_3MIN) 152 case DS_3MIN: 153 ioasic_devs = kmin_ioasic_devs; 154 ioasic_ndevs = kmin_ioasic_ndevs; 155 builtin_ndevs = kmin_builtin_ndevs; 156 break; 157 #endif 158 #if defined(DEC_MAXINE) 159 case DS_MAXINE: 160 ioasic_devs = xine_ioasic_devs; 161 ioasic_ndevs = xine_ioasic_ndevs; 162 builtin_ndevs = xine_builtin_ndevs; 163 break; 164 #endif 165 #if defined(DEC_3MAXPLUS) 166 case DS_3MAXPLUS: 167 ioasic_devs = kn03_ioasic_devs; 168 ioasic_ndevs = kn03_ioasic_ndevs; 169 builtin_ndevs = kn03_builtin_ndevs; 170 break; 171 #endif 172 default: 173 panic("ioasicmatch: how did we get here?"); 174 } 175 176 /* 177 * Turn off all device interrupt bits. 178 * (This _does_ include TC option slot bits. 179 */ 180 imsk = bus_space_read_4(sc->sc_bst, sc->sc_bsh, IOASIC_IMSK); 181 for (i = 0; i < ioasic_ndevs; i++) 182 imsk &= ~ioasic_devs[i].iad_intrbits; 183 bus_space_write_4(sc->sc_bst, sc->sc_bsh, IOASIC_IMSK, imsk); 184 185 /* 186 * Try to configure each device. 187 */ 188 ioasic_attach_devs(sc, ioasic_devs, builtin_ndevs); 189 } 190 191 #if 1 /* XXX for now XXX */ 192 void 193 ioasic_intr_establish(dev, cookie, level, handler, val) 194 struct device *dev; 195 void *cookie; 196 int level; 197 int (*handler) __P((void *)); 198 void *val; 199 { 200 (*tc_enable_interrupt)((unsigned)cookie, handler, val, 1); 201 } 202 203 #else /* XXX eventually XXX */ 204 205 void 206 ioasic_intr_establish(ioa, cookie, level, func, arg) 207 struct device *ioa; 208 void *cookie, *arg; 209 int level; 210 int (*func) __P((void *)); 211 { 212 struct ioasic_softc *sc = (void *)ioasic_cd.cd_devs[0]; 213 int i, intrbits; 214 215 for (i = 0; i < ioasic_ndevs; i++) { 216 if (ioasic_devs[i].iad_cookie == cookie) 217 goto found; 218 } 219 panic("ioasic_intr_establish: invalid cookie %d", (int)cookie); 220 found: 221 222 intrtab[(int)cookie].ih_func = func; 223 intrtab[(int)cookie].ih_arg = arg; 224 225 intrbits = ioasic_devs[i].iad_intrbits; 226 i = bus_space_read_4(sc->sc_bst, sc->sc_bsh, IOASIC_IMSK); 227 i |= intrbits; 228 bus_space_write_4(sc->sc_bst, sc->sc_bsh, IOASIC_IMSK, i); 229 } 230 231 void 232 ioasic_intr_disestablish(ioa, cookie) 233 struct device *ioa; 234 void *cookie; 235 { 236 panic("ioasic_intr_disestablish: cookie %d", (int)cookie); 237 } 238 #endif 239
Indexes created Wed Oct 15 03:09:54 GMT 2025