Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/pci/if_ne_pci.c
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1 /* $NetBSD: if_ne_pci.c,v 1.25 2004/02/13 10:05:50 wiz Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: if_ne_pci.c,v 1.25 2004/02/13 10:05:50 wiz Exp $"); 42 43 #include "opt_ipkdb.h" 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/mbuf.h> 48 #include <sys/syslog.h> 49 #include <sys/socket.h> 50 #include <sys/device.h> 51 52 #include <net/if.h> 53 #include <net/if_ether.h> 54 #include <net/if_media.h> 55 56 #include <machine/bus.h> 57 #include <machine/intr.h> 58 59 #ifdef IPKDB_NE_PCI 60 #include <ipkdb/ipkdb.h> 61 #endif 62 63 #include <dev/pci/pcireg.h> 64 #include <dev/pci/pcivar.h> 65 #include <dev/pci/pcidevs.h> 66 67 #include <dev/ic/dp8390reg.h> 68 #include <dev/ic/dp8390var.h> 69 70 #include <dev/ic/ne2000reg.h> 71 #include <dev/ic/ne2000var.h> 72 73 #include <dev/ic/rtl80x9reg.h> 74 #include <dev/ic/rtl80x9var.h> 75 76 struct ne_pci_softc { 77 struct ne2000_softc sc_ne2000; /* real "ne2000" softc */ 78 79 /* PCI-specific goo */ 80 void *sc_ih; /* interrupt handle */ 81 }; 82 83 int ne_pci_match __P((struct device *, struct cfdata *, void *)); 84 void ne_pci_attach __P((struct device *, struct device *, void *)); 85 86 CFATTACH_DECL(ne_pci, sizeof(struct ne_pci_softc), 87 ne_pci_match, ne_pci_attach, NULL, NULL); 88 89 #ifdef IPKDB_NE_PCI 90 static struct ne_pci_softc ipkdb_softc; 91 static pci_chipset_tag_t ipkdb_pc; 92 static pcitag_t ipkdb_tag; 93 static struct ipkdb_if *ne_kip; 94 95 int ne_pci_ipkdb_attach __P((struct ipkdb_if *, bus_space_tag_t, /* XXX */ 96 pci_chipset_tag_t, int, int)); 97 98 static int ne_pci_isipkdb __P((pci_chipset_tag_t, pcitag_t)); 99 #endif 100 101 const struct ne_pci_product { 102 pci_vendor_id_t npp_vendor; 103 pci_product_id_t npp_product; 104 int (*npp_mediachange) __P((struct dp8390_softc *)); 105 void (*npp_mediastatus) __P((struct dp8390_softc *, 106 struct ifmediareq *)); 107 void (*npp_init_card) __P((struct dp8390_softc *)); 108 void (*npp_media_init) __P((struct dp8390_softc *)); 109 const char *npp_name; 110 } ne_pci_products[] = { 111 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8029, 112 rtl80x9_mediachange, rtl80x9_mediastatus, 113 rtl80x9_init_card, rtl80x9_media_init, 114 "Realtek 8029" }, 115 116 { PCI_VENDOR_WINBOND, PCI_PRODUCT_WINBOND_W89C940F, 117 NULL, NULL, 118 NULL, NULL, 119 "Winbond 89C940F" }, 120 121 { PCI_VENDOR_WINBOND, PCI_PRODUCT_WINBOND_W89C940F_1, 122 NULL, NULL, 123 NULL, NULL, 124 "Winbond 89C940F" }, 125 126 { PCI_VENDOR_VIATECH, PCI_PRODUCT_VIATECH_VT86C926, 127 NULL, NULL, 128 NULL, NULL, 129 "VIA Technologies VT86C926" }, 130 131 { PCI_VENDOR_SURECOM, PCI_PRODUCT_SURECOM_NE34, 132 NULL, NULL, 133 NULL, NULL, 134 "Surecom NE-34" }, 135 136 { PCI_VENDOR_NETVIN, PCI_PRODUCT_NETVIN_5000, 137 NULL, NULL, 138 NULL, NULL, 139 "NetVin 5000" }, 140 141 /* XXX The following entries need sanity checking in pcidevs */ 142 { PCI_VENDOR_COMPEX, PCI_PRODUCT_COMPEX_NE2KETHER, 143 NULL, NULL, 144 NULL, NULL, 145 "Compex" }, 146 147 { PCI_VENDOR_PROLAN, PCI_PRODUCT_PROLAN_NE2KETHER, 148 NULL, NULL, 149 NULL, NULL, 150 "ProLAN" }, 151 152 { PCI_VENDOR_KTI, PCI_PRODUCT_KTI_NE2KETHER, 153 NULL, NULL, 154 NULL, NULL, 155 "KTI" }, 156 157 { 0, 0, 158 NULL, NULL, 159 NULL, NULL, 160 NULL }, 161 }; 162 163 const struct ne_pci_product *ne_pci_lookup 164 __P((const struct pci_attach_args *)); 165 166 const struct ne_pci_product * 167 ne_pci_lookup(pa) 168 const struct pci_attach_args *pa; 169 { 170 const struct ne_pci_product *npp; 171 172 for (npp = ne_pci_products; npp->npp_name != NULL; npp++) { 173 if (PCI_VENDOR(pa->pa_id) == npp->npp_vendor && 174 PCI_PRODUCT(pa->pa_id) == npp->npp_product) 175 return (npp); 176 } 177 return (NULL); 178 } 179 180 /* 181 * PCI constants. 182 * XXX These should be in a common file! 183 */ 184 #define PCI_CBIO 0x10 /* Configuration Base IO Address */ 185 186 int 187 ne_pci_match(parent, match, aux) 188 struct device *parent; 189 struct cfdata *match; 190 void *aux; 191 { 192 struct pci_attach_args *pa = aux; 193 194 if (ne_pci_lookup(pa) != NULL) 195 return (1); 196 197 return (0); 198 } 199 200 void 201 ne_pci_attach(parent, self, aux) 202 struct device *parent, *self; 203 void *aux; 204 { 205 struct ne_pci_softc *psc = (struct ne_pci_softc *)self; 206 struct ne2000_softc *nsc = &psc->sc_ne2000; 207 struct dp8390_softc *dsc = &nsc->sc_dp8390; 208 struct pci_attach_args *pa = aux; 209 pci_chipset_tag_t pc = pa->pa_pc; 210 bus_space_tag_t nict; 211 bus_space_handle_t nich; 212 bus_space_tag_t asict; 213 bus_space_handle_t asich; 214 const char *intrstr; 215 const struct ne_pci_product *npp; 216 pci_intr_handle_t ih; 217 pcireg_t csr; 218 219 npp = ne_pci_lookup(pa); 220 if (npp == NULL) { 221 printf("\n"); 222 panic("ne_pci_attach: impossible"); 223 } 224 225 printf(": %s Ethernet\n", npp->npp_name); 226 227 #ifdef IPKDB_NE_PCI 228 if (ne_pci_isipkdb(pc, pa->pa_tag)) { 229 nict = ipkdb_softc.sc_ne2000.sc_dp8390.sc_regt; 230 nich = ipkdb_softc.sc_ne2000.sc_dp8390.sc_regh; 231 ne_kip->port = nsc; 232 } else 233 #endif 234 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 235 &nict, &nich, NULL, NULL)) { 236 printf("%s: can't map i/o space\n", dsc->sc_dev.dv_xname); 237 return; 238 } 239 240 asict = nict; 241 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET, 242 NE2000_ASIC_NPORTS, &asich)) { 243 printf("%s: can't subregion i/o space\n", dsc->sc_dev.dv_xname); 244 return; 245 } 246 247 dsc->sc_regt = nict; 248 dsc->sc_regh = nich; 249 250 nsc->sc_asict = asict; 251 nsc->sc_asich = asich; 252 253 /* Enable the card. */ 254 csr = pci_conf_read(pc, pa->pa_tag, 255 PCI_COMMAND_STATUS_REG); 256 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 257 csr | PCI_COMMAND_MASTER_ENABLE); 258 259 /* This interface is always enabled. */ 260 dsc->sc_enabled = 1; 261 262 dsc->sc_mediachange = npp->npp_mediachange; 263 dsc->sc_mediastatus = npp->npp_mediastatus; 264 dsc->sc_media_init = npp->npp_media_init; 265 dsc->init_card = npp->npp_init_card; 266 267 /* 268 * Do generic NE2000 attach. This will read the station address 269 * from the EEPROM. 270 */ 271 ne2000_attach(nsc, NULL); 272 273 /* Map and establish the interrupt. */ 274 if (pci_intr_map(pa, &ih)) { 275 printf("%s: couldn't map interrupt\n", dsc->sc_dev.dv_xname); 276 return; 277 } 278 intrstr = pci_intr_string(pc, ih); 279 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, dp8390_intr, dsc); 280 if (psc->sc_ih == NULL) { 281 printf("%s: couldn't establish interrupt", 282 dsc->sc_dev.dv_xname); 283 if (intrstr != NULL) 284 printf(" at %s", intrstr); 285 printf("\n"); 286 return; 287 } 288 printf("%s: interrupting at %s\n", dsc->sc_dev.dv_xname, intrstr); 289 } 290 291 #ifdef IPKDB_NE_PCI 292 static int 293 ne_pci_isipkdb(pc, tag) 294 pci_chipset_tag_t pc; 295 pcitag_t tag; 296 { 297 return !memcmp(&pc, &ipkdb_pc, sizeof pc) 298 && !memcmp(&tag, &ipkdb_tag, sizeof tag); 299 } 300 301 int 302 ne_pci_ipkdb_attach(kip, iot, pc, bus, dev) 303 struct ipkdb_if *kip; 304 bus_space_tag_t iot; 305 pci_chipset_tag_t pc; 306 int bus, dev; 307 { 308 struct pci_attach_args pa; 309 bus_space_tag_t nict, asict; 310 bus_space_handle_t nich, asich; 311 u_int32_t csr; 312 313 pa.pa_iot = iot; 314 pa.pa_pc = pc; 315 pa.pa_device = dev; 316 pa.pa_function = 0; 317 pa.pa_flags = PCI_FLAGS_IO_ENABLED; 318 pa.pa_tag = pci_make_tag(pc, bus, dev, /*func*/0); 319 pa.pa_id = pci_conf_read(pc, pa.pa_tag, PCI_ID_REG); 320 pa.pa_class = pci_conf_read(pc, pa.pa_tag, PCI_CLASS_REG); 321 if (ne_pci_lookup(&pa) == NULL) 322 return -1; 323 324 if (pci_mapreg_map(&pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 325 &nict, &nich, NULL, NULL)) 326 return -1; 327 328 asict = nict; 329 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET, 330 NE2000_ASIC_NPORTS, &asich)) { 331 bus_space_unmap(nict, nich, NE2000_NPORTS); 332 return -1; 333 } 334 335 /* Enable card */ 336 csr = pci_conf_read(pc, pa.pa_tag, PCI_COMMAND_STATUS_REG); 337 pci_conf_write(pc, pa.pa_tag, PCI_COMMAND_STATUS_REG, 338 csr | PCI_COMMAND_MASTER_ENABLE); 339 340 ipkdb_softc.sc_ne2000.sc_dp8390.sc_regt = nict; 341 ipkdb_softc.sc_ne2000.sc_dp8390.sc_regh = nich; 342 ipkdb_softc.sc_ne2000.sc_asict = asict; 343 ipkdb_softc.sc_ne2000.sc_asich = asich; 344 345 kip->port = &ipkdb_softc; 346 ipkdb_pc = pc; 347 ipkdb_tag = pa.pa_tag; 348 ne_kip = kip; 349 350 if (ne2000_ipkdb_attach(kip) < 0) { 351 bus_space_unmap(nict, nich, NE2000_NPORTS); 352 return -1; 353 } 354 355 return 0; 356 } 357 #endif
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