necpb.c revision 1.5.2.5
1 1.5.2.5 bouyer /* $NetBSD: necpb.c,v 1.5.2.5 2001/01/18 09:22:12 bouyer Exp $ */ 2 1.5.2.2 bouyer 3 1.5.2.2 bouyer /*- 4 1.5.2.2 bouyer * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. 5 1.5.2.2 bouyer * All rights reserved. 6 1.5.2.2 bouyer * 7 1.5.2.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.5.2.2 bouyer * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 1.5.2.2 bouyer * NASA Ames Research Center. 10 1.5.2.2 bouyer * 11 1.5.2.2 bouyer * Redistribution and use in source and binary forms, with or without 12 1.5.2.2 bouyer * modification, are permitted provided that the following conditions 13 1.5.2.2 bouyer * are met: 14 1.5.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 15 1.5.2.2 bouyer * notice, this list of conditions and the following disclaimer. 16 1.5.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 17 1.5.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 18 1.5.2.2 bouyer * documentation and/or other materials provided with the distribution. 19 1.5.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 20 1.5.2.2 bouyer * must display the following acknowledgement: 21 1.5.2.2 bouyer * This product includes software developed by the NetBSD 22 1.5.2.2 bouyer * Foundation, Inc. and its contributors. 23 1.5.2.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 24 1.5.2.2 bouyer * contributors may be used to endorse or promote products derived 25 1.5.2.2 bouyer * from this software without specific prior written permission. 26 1.5.2.2 bouyer * 27 1.5.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 1.5.2.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 1.5.2.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 1.5.2.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 1.5.2.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 1.5.2.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 1.5.2.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 1.5.2.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 1.5.2.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 1.5.2.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 1.5.2.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 38 1.5.2.2 bouyer */ 39 1.5.2.2 bouyer 40 1.5.2.2 bouyer /* 41 1.5.2.2 bouyer * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 42 1.5.2.2 bouyer * Copyright (c) 1994 Charles M. Hannum. All rights reserved. 43 1.5.2.2 bouyer * 44 1.5.2.2 bouyer * Redistribution and use in source and binary forms, with or without 45 1.5.2.2 bouyer * modification, are permitted provided that the following conditions 46 1.5.2.2 bouyer * are met: 47 1.5.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 48 1.5.2.2 bouyer * notice, this list of conditions and the following disclaimer. 49 1.5.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 50 1.5.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 51 1.5.2.2 bouyer * documentation and/or other materials provided with the distribution. 52 1.5.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 53 1.5.2.2 bouyer * must display the following acknowledgement: 54 1.5.2.2 bouyer * This product includes software developed by Charles M. Hannum. 55 1.5.2.2 bouyer * 4. The name of the author may not be used to endorse or promote products 56 1.5.2.2 bouyer * derived from this software without specific prior written permission. 57 1.5.2.2 bouyer * 58 1.5.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 59 1.5.2.2 bouyer * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 1.5.2.2 bouyer * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 1.5.2.2 bouyer * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 62 1.5.2.2 bouyer * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 63 1.5.2.2 bouyer * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 64 1.5.2.2 bouyer * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 65 1.5.2.2 bouyer * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 66 1.5.2.2 bouyer * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 67 1.5.2.2 bouyer * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 68 1.5.2.2 bouyer */ 69 1.5.2.2 bouyer 70 1.5.2.2 bouyer #include <sys/types.h> 71 1.5.2.2 bouyer #include <sys/param.h> 72 1.5.2.2 bouyer #include <sys/time.h> 73 1.5.2.2 bouyer #include <sys/systm.h> 74 1.5.2.2 bouyer #include <sys/errno.h> 75 1.5.2.2 bouyer #include <sys/device.h> 76 1.5.2.2 bouyer #include <sys/malloc.h> 77 1.5.2.2 bouyer #include <sys/extent.h> 78 1.5.2.2 bouyer 79 1.5.2.2 bouyer #include <uvm/uvm_extern.h> 80 1.5.2.2 bouyer 81 1.5.2.2 bouyer #define _ARC_BUS_DMA_PRIVATE 82 1.5.2.2 bouyer #include <machine/bus.h> 83 1.5.2.2 bouyer 84 1.5.2.2 bouyer #include <machine/pio.h> 85 1.5.2.2 bouyer 86 1.5.2.2 bouyer #include <machine/autoconf.h> 87 1.5.2.2 bouyer #include <machine/cpu.h> 88 1.5.2.2 bouyer 89 1.5.2.2 bouyer #include <dev/pci/pcivar.h> 90 1.5.2.2 bouyer #include <dev/pci/pcireg.h> 91 1.5.2.2 bouyer 92 1.5.2.4 bouyer #include <arc/jazz/rd94.h> 93 1.5.2.2 bouyer #include <arc/pci/necpbvar.h> 94 1.5.2.2 bouyer 95 1.5.2.2 bouyer int necpbmatch __P((struct device *, struct cfdata *, void *)); 96 1.5.2.2 bouyer void necpbattach __P((struct device *, struct device *, void *)); 97 1.5.2.2 bouyer 98 1.5.2.2 bouyer static int necpbprint __P((void *, const char *)); 99 1.5.2.2 bouyer 100 1.5.2.2 bouyer void necpb_attach_hook __P((struct device *, struct device *, 101 1.5.2.2 bouyer struct pcibus_attach_args *)); 102 1.5.2.2 bouyer int necpb_bus_maxdevs __P((pci_chipset_tag_t, int)); 103 1.5.2.2 bouyer pcitag_t necpb_make_tag __P((pci_chipset_tag_t, int, int, int)); 104 1.5.2.2 bouyer void necpb_decompose_tag __P((pci_chipset_tag_t, pcitag_t, int *, 105 1.5.2.2 bouyer int *, int *)); 106 1.5.2.2 bouyer pcireg_t necpb_conf_read __P((pci_chipset_tag_t, pcitag_t, int)); 107 1.5.2.2 bouyer void necpb_conf_write __P((pci_chipset_tag_t, pcitag_t, int, 108 1.5.2.2 bouyer pcireg_t)); 109 1.5.2.5 bouyer int necpb_intr_map __P((struct pci_attach_args *, 110 1.5.2.2 bouyer pci_intr_handle_t *)); 111 1.5.2.2 bouyer const char * necpb_intr_string __P((pci_chipset_tag_t, pci_intr_handle_t)); 112 1.5.2.2 bouyer void * necpb_intr_establish __P((pci_chipset_tag_t, pci_intr_handle_t, 113 1.5.2.2 bouyer int, int (*func)(void *), void *)); 114 1.5.2.2 bouyer void necpb_intr_disestablish __P((pci_chipset_tag_t, void *)); 115 1.5.2.2 bouyer 116 1.5.2.2 bouyer int necpb_intr(unsigned, struct clockframe *); 117 1.5.2.2 bouyer 118 1.5.2.2 bouyer 119 1.5.2.2 bouyer struct cfattach necpb_ca = { 120 1.5.2.2 bouyer sizeof(struct necpb_softc), necpbmatch, necpbattach, 121 1.5.2.2 bouyer }; 122 1.5.2.2 bouyer 123 1.5.2.2 bouyer extern struct cfdriver necpb_cd; 124 1.5.2.2 bouyer 125 1.5.2.2 bouyer static struct necpb_intrhand *necpb_inttbl[4]; 126 1.5.2.2 bouyer 127 1.5.2.2 bouyer /* There can be only one. */ 128 1.5.2.2 bouyer int necpbfound; 129 1.5.2.2 bouyer struct necpb_config necpb_configuration; 130 1.5.2.2 bouyer static long necpb_mem_ex_storage[EXTENT_FIXED_STORAGE_SIZE(10) / sizeof(long)]; 131 1.5.2.2 bouyer static long necpb_io_ex_storage[EXTENT_FIXED_STORAGE_SIZE(10) / sizeof(long)]; 132 1.5.2.2 bouyer 133 1.5.2.2 bouyer int 134 1.5.2.2 bouyer necpbmatch(parent, match, aux) 135 1.5.2.2 bouyer struct device *parent; 136 1.5.2.2 bouyer struct cfdata *match; 137 1.5.2.2 bouyer void *aux; 138 1.5.2.2 bouyer { 139 1.5.2.2 bouyer struct confargs *ca = aux; 140 1.5.2.2 bouyer 141 1.5.2.2 bouyer if (strcmp(ca->ca_name, necpb_cd.cd_name) != 0) 142 1.5.2.2 bouyer return (0); 143 1.5.2.2 bouyer 144 1.5.2.2 bouyer if (necpbfound) 145 1.5.2.2 bouyer return (0); 146 1.5.2.2 bouyer 147 1.5.2.2 bouyer return (1); 148 1.5.2.2 bouyer } 149 1.5.2.2 bouyer 150 1.5.2.2 bouyer /* 151 1.5.2.2 bouyer * Set up the chipset's function pointers. 152 1.5.2.2 bouyer */ 153 1.5.2.2 bouyer void 154 1.5.2.2 bouyer necpb_init(ncp) 155 1.5.2.2 bouyer struct necpb_config *ncp; 156 1.5.2.2 bouyer { 157 1.5.2.2 bouyer pcitag_t tag; 158 1.5.2.2 bouyer pcireg_t csr; 159 1.5.2.2 bouyer 160 1.5.2.2 bouyer if (ncp->nc_initialized) 161 1.5.2.2 bouyer return; 162 1.5.2.2 bouyer 163 1.5.2.2 bouyer arc_large_bus_space_init(&ncp->nc_memt, "necpcimem", 164 1.5.2.2 bouyer RD94_P_PCI_MEM, 0, RD94_S_PCI_MEM); 165 1.5.2.2 bouyer arc_bus_space_init_extent(&ncp->nc_memt, (caddr_t)necpb_mem_ex_storage, 166 1.5.2.2 bouyer sizeof(necpb_mem_ex_storage)); 167 1.5.2.2 bouyer 168 1.5.2.2 bouyer arc_bus_space_init(&ncp->nc_iot, "necpciio", 169 1.5.2.2 bouyer RD94_P_PCI_IO, RD94_V_PCI_IO, 0, RD94_S_PCI_IO); 170 1.5.2.2 bouyer arc_bus_space_init_extent(&ncp->nc_iot, (caddr_t)necpb_io_ex_storage, 171 1.5.2.2 bouyer sizeof(necpb_io_ex_storage)); 172 1.5.2.2 bouyer 173 1.5.2.2 bouyer jazz_bus_dma_tag_init(&ncp->nc_dmat); 174 1.5.2.2 bouyer 175 1.5.2.2 bouyer ncp->nc_pc.pc_attach_hook = necpb_attach_hook; 176 1.5.2.2 bouyer ncp->nc_pc.pc_bus_maxdevs = necpb_bus_maxdevs; 177 1.5.2.2 bouyer ncp->nc_pc.pc_make_tag = necpb_make_tag; 178 1.5.2.2 bouyer ncp->nc_pc.pc_conf_read = necpb_conf_read; 179 1.5.2.2 bouyer ncp->nc_pc.pc_conf_write = necpb_conf_write; 180 1.5.2.2 bouyer ncp->nc_pc.pc_intr_map = necpb_intr_map; 181 1.5.2.2 bouyer ncp->nc_pc.pc_intr_string = necpb_intr_string; 182 1.5.2.2 bouyer ncp->nc_pc.pc_intr_establish = necpb_intr_establish; 183 1.5.2.2 bouyer ncp->nc_pc.pc_intr_disestablish = necpb_intr_disestablish; 184 1.5.2.2 bouyer 185 1.5.2.2 bouyer /* XXX: enable all mem/io/busmaster */ 186 1.5.2.2 bouyer tag = necpb_make_tag(&ncp->nc_pc, 0, 3, 0); 187 1.5.2.2 bouyer csr = necpb_conf_read(&ncp->nc_pc, tag, PCI_COMMAND_STATUS_REG); 188 1.5.2.2 bouyer csr |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE | 189 1.5.2.2 bouyer PCI_COMMAND_MASTER_ENABLE; 190 1.5.2.2 bouyer necpb_conf_write(&ncp->nc_pc, tag, PCI_COMMAND_STATUS_REG, csr); 191 1.5.2.2 bouyer 192 1.5.2.2 bouyer tag = necpb_make_tag(&ncp->nc_pc, 0, 4, 0); 193 1.5.2.2 bouyer csr = necpb_conf_read(&ncp->nc_pc, tag, PCI_COMMAND_STATUS_REG); 194 1.5.2.2 bouyer csr |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE | 195 1.5.2.2 bouyer PCI_COMMAND_MASTER_ENABLE; 196 1.5.2.2 bouyer necpb_conf_write(&ncp->nc_pc, tag, PCI_COMMAND_STATUS_REG, csr); 197 1.5.2.2 bouyer 198 1.5.2.2 bouyer tag = necpb_make_tag(&ncp->nc_pc, 0, 5, 0); 199 1.5.2.2 bouyer csr = necpb_conf_read(&ncp->nc_pc, tag, PCI_COMMAND_STATUS_REG); 200 1.5.2.2 bouyer csr |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE | 201 1.5.2.2 bouyer PCI_COMMAND_MASTER_ENABLE; 202 1.5.2.2 bouyer necpb_conf_write(&ncp->nc_pc, tag, PCI_COMMAND_STATUS_REG, csr); 203 1.5.2.2 bouyer 204 1.5.2.2 bouyer ncp->nc_initialized = 1; 205 1.5.2.2 bouyer } 206 1.5.2.2 bouyer 207 1.5.2.2 bouyer void 208 1.5.2.2 bouyer necpbattach(parent, self, aux) 209 1.5.2.2 bouyer struct device *parent, *self; 210 1.5.2.2 bouyer void *aux; 211 1.5.2.2 bouyer { 212 1.5.2.2 bouyer struct necpb_softc *sc = (struct necpb_softc *)self; 213 1.5.2.2 bouyer struct pcibus_attach_args pba; 214 1.5.2.2 bouyer int i; 215 1.5.2.2 bouyer 216 1.5.2.2 bouyer necpbfound = 1; 217 1.5.2.2 bouyer 218 1.5.2.2 bouyer printf("\n"); 219 1.5.2.2 bouyer 220 1.5.2.2 bouyer sc->sc_ncp = &necpb_configuration; 221 1.5.2.2 bouyer necpb_init(sc->sc_ncp); 222 1.5.2.2 bouyer 223 1.5.2.2 bouyer out32(RD94_SYS_PCI_INTMASK, 0xf); 224 1.5.2.2 bouyer 225 1.5.2.2 bouyer for (i = 0; i < 4; i++) 226 1.5.2.2 bouyer necpb_inttbl[i] = NULL; 227 1.5.2.2 bouyer 228 1.5.2.2 bouyer set_intr(MIPS_INT_MASK_2, necpb_intr, 3); 229 1.5.2.2 bouyer 230 1.5.2.2 bouyer pba.pba_busname = "pci"; 231 1.5.2.2 bouyer pba.pba_iot = &sc->sc_ncp->nc_iot; 232 1.5.2.2 bouyer pba.pba_memt = &sc->sc_ncp->nc_memt; 233 1.5.2.2 bouyer pba.pba_dmat = &sc->sc_ncp->nc_dmat; 234 1.5.2.2 bouyer pba.pba_pc = &sc->sc_ncp->nc_pc; 235 1.5.2.2 bouyer pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED; 236 1.5.2.2 bouyer pba.pba_bus = 0; 237 1.5.2.2 bouyer 238 1.5.2.2 bouyer config_found(self, &pba, necpbprint); 239 1.5.2.2 bouyer } 240 1.5.2.2 bouyer 241 1.5.2.2 bouyer static int 242 1.5.2.2 bouyer necpbprint(aux, pnp) 243 1.5.2.2 bouyer void *aux; 244 1.5.2.2 bouyer const char *pnp; 245 1.5.2.2 bouyer { 246 1.5.2.2 bouyer struct pcibus_attach_args *pba = aux; 247 1.5.2.2 bouyer 248 1.5.2.2 bouyer if (pnp) 249 1.5.2.2 bouyer printf("%s at %s", pba->pba_busname, pnp); 250 1.5.2.2 bouyer printf(" bus %d", pba->pba_bus); 251 1.5.2.2 bouyer return (UNCONF); 252 1.5.2.2 bouyer } 253 1.5.2.2 bouyer 254 1.5.2.2 bouyer void 255 1.5.2.2 bouyer necpb_attach_hook(parent, self, pba) 256 1.5.2.2 bouyer struct device *parent, *self; 257 1.5.2.2 bouyer struct pcibus_attach_args *pba; 258 1.5.2.2 bouyer { 259 1.5.2.2 bouyer } 260 1.5.2.2 bouyer 261 1.5.2.2 bouyer int 262 1.5.2.2 bouyer necpb_bus_maxdevs(pc, busno) 263 1.5.2.2 bouyer pci_chipset_tag_t pc; 264 1.5.2.2 bouyer int busno; 265 1.5.2.2 bouyer { 266 1.5.2.2 bouyer return (32); 267 1.5.2.2 bouyer } 268 1.5.2.2 bouyer 269 1.5.2.2 bouyer pcitag_t 270 1.5.2.2 bouyer necpb_make_tag(pc, bus, device, function) 271 1.5.2.2 bouyer pci_chipset_tag_t pc; 272 1.5.2.2 bouyer int bus, device, function; 273 1.5.2.2 bouyer { 274 1.5.2.2 bouyer pcitag_t tag; 275 1.5.2.2 bouyer 276 1.5.2.2 bouyer if (bus >= 256 || device >= 32 || function >= 8) 277 1.5.2.2 bouyer panic("necpb_make_tag: bad request"); 278 1.5.2.2 bouyer 279 1.5.2.2 bouyer tag = 0x80000000 | (bus << 16) | (device << 11) | (function << 8); 280 1.5.2.2 bouyer return (tag); 281 1.5.2.2 bouyer } 282 1.5.2.2 bouyer 283 1.5.2.2 bouyer void 284 1.5.2.2 bouyer necpb_decompose_tag(pc, tag, bp, dp, fp) 285 1.5.2.2 bouyer pci_chipset_tag_t pc; 286 1.5.2.2 bouyer pcitag_t tag; 287 1.5.2.2 bouyer int *bp, *dp, *fp; 288 1.5.2.2 bouyer { 289 1.5.2.2 bouyer if (bp != NULL) 290 1.5.2.2 bouyer *bp = (tag >> 16) & 0xff; 291 1.5.2.2 bouyer if (dp != NULL) 292 1.5.2.2 bouyer *dp = (tag >> 11) & 0x1f; 293 1.5.2.2 bouyer if (fp != NULL) 294 1.5.2.2 bouyer *fp = (tag >> 8) & 0x07; 295 1.5.2.2 bouyer } 296 1.5.2.2 bouyer 297 1.5.2.2 bouyer pcireg_t 298 1.5.2.2 bouyer necpb_conf_read(pc, tag, reg) 299 1.5.2.2 bouyer pci_chipset_tag_t pc; 300 1.5.2.2 bouyer pcitag_t tag; 301 1.5.2.2 bouyer int reg; 302 1.5.2.2 bouyer { 303 1.5.2.2 bouyer pcireg_t data; 304 1.5.2.2 bouyer int s; 305 1.5.2.2 bouyer 306 1.5.2.2 bouyer s = splhigh(); 307 1.5.2.2 bouyer out32(RD94_SYS_PCI_CONFADDR, tag | reg); 308 1.5.2.2 bouyer data = in32(RD94_SYS_PCI_CONFDATA); 309 1.5.2.2 bouyer out32(RD94_SYS_PCI_CONFADDR, 0); 310 1.5.2.2 bouyer splx(s); 311 1.5.2.2 bouyer 312 1.5.2.2 bouyer return (data); 313 1.5.2.2 bouyer } 314 1.5.2.2 bouyer 315 1.5.2.2 bouyer void 316 1.5.2.2 bouyer necpb_conf_write(pc, tag, reg, data) 317 1.5.2.2 bouyer pci_chipset_tag_t pc; 318 1.5.2.2 bouyer pcitag_t tag; 319 1.5.2.2 bouyer int reg; 320 1.5.2.2 bouyer pcireg_t data; 321 1.5.2.2 bouyer { 322 1.5.2.2 bouyer int s; 323 1.5.2.2 bouyer 324 1.5.2.2 bouyer s = splhigh(); 325 1.5.2.2 bouyer out32(RD94_SYS_PCI_CONFADDR, tag | reg); 326 1.5.2.2 bouyer out32(RD94_SYS_PCI_CONFDATA, data); 327 1.5.2.2 bouyer out32(RD94_SYS_PCI_CONFADDR, 0); 328 1.5.2.2 bouyer splx(s); 329 1.5.2.2 bouyer } 330 1.5.2.2 bouyer 331 1.5.2.2 bouyer int 332 1.5.2.5 bouyer necpb_intr_map(pa, ihp) 333 1.5.2.5 bouyer struct pci_attach_args *pa; 334 1.5.2.2 bouyer pci_intr_handle_t *ihp; 335 1.5.2.2 bouyer { 336 1.5.2.5 bouyer pci_chipset_tag_t pc = pa->pa_pc; 337 1.5.2.5 bouyer pcitag_t intrtag = pa->pa_intrtag; 338 1.5.2.5 bouyer int pin = pa->pa_intrpin; 339 1.5.2.2 bouyer int bus, dev; 340 1.5.2.2 bouyer 341 1.5.2.2 bouyer if (pin == 0) { 342 1.5.2.2 bouyer /* No IRQ used. */ 343 1.5.2.2 bouyer *ihp = -1; 344 1.5.2.2 bouyer return (1); 345 1.5.2.2 bouyer } 346 1.5.2.2 bouyer 347 1.5.2.2 bouyer if (pin > 4) { 348 1.5.2.2 bouyer printf("necpb_intr_map: bad interrupt pin %d\n", pin); 349 1.5.2.2 bouyer *ihp = -1; 350 1.5.2.2 bouyer return (1); 351 1.5.2.2 bouyer } 352 1.5.2.2 bouyer 353 1.5.2.2 bouyer necpb_decompose_tag(pc, intrtag, &bus, &dev, NULL); 354 1.5.2.2 bouyer if (bus != 0) { 355 1.5.2.2 bouyer *ihp = -1; 356 1.5.2.2 bouyer return (1); 357 1.5.2.2 bouyer } 358 1.5.2.2 bouyer 359 1.5.2.2 bouyer switch (dev) { 360 1.5.2.2 bouyer case 3: 361 1.5.2.2 bouyer *ihp = (pin+2) % 4; 362 1.5.2.2 bouyer break; 363 1.5.2.2 bouyer case 4: 364 1.5.2.2 bouyer *ihp = (pin+1) % 4; 365 1.5.2.2 bouyer break; 366 1.5.2.2 bouyer case 5: 367 1.5.2.2 bouyer *ihp = (pin) % 4; 368 1.5.2.2 bouyer break; 369 1.5.2.2 bouyer default: 370 1.5.2.2 bouyer *ihp = -1; 371 1.5.2.2 bouyer return (1); 372 1.5.2.2 bouyer } 373 1.5.2.2 bouyer 374 1.5.2.2 bouyer return (0); 375 1.5.2.2 bouyer } 376 1.5.2.2 bouyer 377 1.5.2.2 bouyer const char * 378 1.5.2.2 bouyer necpb_intr_string(pc, ih) 379 1.5.2.2 bouyer pci_chipset_tag_t pc; 380 1.5.2.2 bouyer pci_intr_handle_t ih; 381 1.5.2.2 bouyer { 382 1.5.2.2 bouyer static char str[8]; 383 1.5.2.2 bouyer 384 1.5.2.2 bouyer if (ih >= 4) 385 1.5.2.3 bouyer panic("necpb_intr_string: bogus handle %ld", ih); 386 1.5.2.2 bouyer sprintf(str, "int %c", 'A' + (int)ih); 387 1.5.2.2 bouyer return (str); 388 1.5.2.2 bouyer } 389 1.5.2.2 bouyer 390 1.5.2.2 bouyer void * 391 1.5.2.2 bouyer necpb_intr_establish(pc, ih, level, func, arg) 392 1.5.2.2 bouyer pci_chipset_tag_t pc; 393 1.5.2.2 bouyer pci_intr_handle_t ih; 394 1.5.2.2 bouyer int level, (*func) __P((void *)); 395 1.5.2.2 bouyer void *arg; 396 1.5.2.2 bouyer { 397 1.5.2.2 bouyer struct necpb_intrhand *n, *p; 398 1.5.2.2 bouyer u_int32_t mask; 399 1.5.2.2 bouyer 400 1.5.2.2 bouyer if (ih >= 4) 401 1.5.2.2 bouyer panic("necpb_intr_establish: bogus handle"); 402 1.5.2.2 bouyer 403 1.5.2.2 bouyer n = malloc(sizeof(struct necpb_intrhand), M_DEVBUF, M_NOWAIT); 404 1.5.2.2 bouyer if (n == NULL) 405 1.5.2.2 bouyer panic("necpb_intr_establish: can't malloc interrupt handle"); 406 1.5.2.2 bouyer 407 1.5.2.2 bouyer n->ih_func = func; 408 1.5.2.2 bouyer n->ih_arg = arg; 409 1.5.2.2 bouyer n->ih_next = NULL; 410 1.5.2.2 bouyer n->ih_intn = ih; 411 1.5.2.2 bouyer 412 1.5.2.2 bouyer if (necpb_inttbl[ih] == NULL) { 413 1.5.2.2 bouyer necpb_inttbl[ih] = n; 414 1.5.2.2 bouyer mask = in32(RD94_SYS_PCI_INTMASK); 415 1.5.2.2 bouyer mask |= 1 << ih; 416 1.5.2.2 bouyer out32(RD94_SYS_PCI_INTMASK, mask); 417 1.5.2.2 bouyer } else { 418 1.5.2.2 bouyer p = necpb_inttbl[ih]; 419 1.5.2.2 bouyer while (p->ih_next != NULL) 420 1.5.2.2 bouyer p = p->ih_next; 421 1.5.2.2 bouyer p->ih_next = n; 422 1.5.2.2 bouyer } 423 1.5.2.2 bouyer 424 1.5.2.2 bouyer return n; 425 1.5.2.2 bouyer } 426 1.5.2.2 bouyer 427 1.5.2.2 bouyer void 428 1.5.2.2 bouyer necpb_intr_disestablish(pc, cookie) 429 1.5.2.2 bouyer pci_chipset_tag_t pc; 430 1.5.2.2 bouyer void *cookie; 431 1.5.2.2 bouyer { 432 1.5.2.2 bouyer struct necpb_intrhand *n, *p, *q; 433 1.5.2.2 bouyer u_int32_t mask; 434 1.5.2.2 bouyer 435 1.5.2.2 bouyer n = cookie; 436 1.5.2.2 bouyer 437 1.5.2.2 bouyer q = NULL; 438 1.5.2.2 bouyer p = necpb_inttbl[n->ih_intn]; 439 1.5.2.2 bouyer while (p != n) { 440 1.5.2.2 bouyer if (p == NULL) 441 1.5.2.2 bouyer panic("necpb_intr_disestablish: broken intr table"); 442 1.5.2.2 bouyer q = p; 443 1.5.2.2 bouyer p = p->ih_next; 444 1.5.2.2 bouyer } 445 1.5.2.2 bouyer 446 1.5.2.2 bouyer if (q == NULL) { 447 1.5.2.2 bouyer necpb_inttbl[n->ih_intn] = n->ih_next; 448 1.5.2.2 bouyer if (n->ih_next == NULL) { 449 1.5.2.2 bouyer mask = in32(RD94_SYS_PCI_INTMASK); 450 1.5.2.2 bouyer mask &= ~(1 << n->ih_intn); 451 1.5.2.2 bouyer out32(RD94_SYS_PCI_INTMASK, mask); 452 1.5.2.2 bouyer } 453 1.5.2.2 bouyer } else 454 1.5.2.2 bouyer q->ih_next = n->ih_next; 455 1.5.2.2 bouyer 456 1.5.2.2 bouyer free(n, M_DEVBUF); 457 1.5.2.2 bouyer } 458 1.5.2.2 bouyer 459 1.5.2.2 bouyer /* 460 1.5.2.2 bouyer * Handle PCI/EISA interrupt. 461 1.5.2.2 bouyer */ 462 1.5.2.2 bouyer int 463 1.5.2.2 bouyer necpb_intr(mask, cf) 464 1.5.2.2 bouyer unsigned mask; 465 1.5.2.2 bouyer struct clockframe *cf; 466 1.5.2.2 bouyer { 467 1.5.2.2 bouyer u_int32_t vector, stat; 468 1.5.2.2 bouyer struct necpb_intrhand *p; 469 1.5.2.2 bouyer int a; 470 1.5.2.2 bouyer 471 1.5.2.2 bouyer vector = in32(RD94_SYS_INTSTAT2) & 0xffff; 472 1.5.2.2 bouyer 473 1.5.2.2 bouyer if (vector == 0x4000) { 474 1.5.2.2 bouyer stat = in32(RD94_SYS_PCI_INTSTAT); 475 1.5.2.2 bouyer stat &= in32(RD94_SYS_PCI_INTMASK); 476 1.5.2.2 bouyer for (a=0; a<4; a++) { 477 1.5.2.2 bouyer if (stat & (1 << a)) { 478 1.5.2.2 bouyer #if 0 479 1.5.2.2 bouyer printf("pint %d\n", a); 480 1.5.2.2 bouyer #endif 481 1.5.2.2 bouyer p = necpb_inttbl[a]; 482 1.5.2.2 bouyer while (p != NULL) { 483 1.5.2.2 bouyer (*p->ih_func)(p->ih_arg); 484 1.5.2.2 bouyer p = p->ih_next; 485 1.5.2.2 bouyer } 486 1.5.2.2 bouyer } 487 1.5.2.2 bouyer } 488 1.5.2.2 bouyer } else if (vector == 0x8000) { 489 1.5.2.2 bouyer printf("eisa_nmi\n"); 490 1.5.2.2 bouyer } else { 491 1.5.2.2 bouyer printf("eint %d\n", vector & 0xff); 492 1.5.2.2 bouyer #if 0 493 1.5.2.2 bouyer eisa_intr(vector & 0xff); 494 1.5.2.2 bouyer #endif 495 1.5.2.2 bouyer } 496 1.5.2.2 bouyer 497 1.5.2.2 bouyer return (~0); 498 1.5.2.2 bouyer } 499
Indexes created Thu Oct 23 22:10:10 GMT 2025