1 /* $NetBSD: if_ne_pci.c,v 1.31 2008/03/12 14:31:11 cube 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 1.31 2008/03/12 14:31:11 cube 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 <sys/bus.h> 57 #include <sys/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 static int ne_pci_match(struct device *, struct cfdata *, void *); 84 static void ne_pci_attach(struct device *, struct device *, void *); 85 86 CFATTACH_DECL_NEW(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(struct ipkdb_if *, bus_space_tag_t, /* XXX */ 96 pci_chipset_tag_t, int, int); 97 98 static int ne_pci_isipkdb(pci_chipset_tag_t, pcitag_t); 99 #endif 100 101 static const struct ne_pci_product { 102 pci_vendor_id_t npp_vendor; 103 pci_product_id_t npp_product; 104 int (*npp_mediachange)(struct dp8390_softc *); 105 void (*npp_mediastatus)(struct dp8390_softc *, struct ifmediareq *); 106 void (*npp_init_card)(struct dp8390_softc *); 107 void (*npp_media_init)(struct dp8390_softc *); 108 const char *npp_name; 109 } ne_pci_products[] = { 110 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8029, 111 rtl80x9_mediachange, rtl80x9_mediastatus, 112 rtl80x9_init_card, rtl80x9_media_init, 113 "Realtek 8029" }, 114 115 { PCI_VENDOR_WINBOND, PCI_PRODUCT_WINBOND_W89C940F, 116 NULL, NULL, 117 NULL, NULL, 118 "Winbond 89C940F" }, 119 120 { PCI_VENDOR_WINBOND, PCI_PRODUCT_WINBOND_W89C940F_1, 121 NULL, NULL, 122 NULL, NULL, 123 "Winbond 89C940F" }, 124 125 { PCI_VENDOR_VIATECH, PCI_PRODUCT_VIATECH_VT86C926, 126 NULL, NULL, 127 NULL, NULL, 128 "VIA Technologies VT86C926" }, 129 130 { PCI_VENDOR_SURECOM, PCI_PRODUCT_SURECOM_NE34, 131 NULL, NULL, 132 NULL, NULL, 133 "Surecom NE-34" }, 134 135 { PCI_VENDOR_NETVIN, PCI_PRODUCT_NETVIN_5000, 136 NULL, NULL, 137 NULL, NULL, 138 "NetVin 5000" }, 139 140 /* XXX The following entries need sanity checking in pcidevs */ 141 { PCI_VENDOR_COMPEX, PCI_PRODUCT_COMPEX_NE2KETHER, 142 NULL, NULL, 143 NULL, NULL, 144 "Compex" }, 145 146 { PCI_VENDOR_PROLAN, PCI_PRODUCT_PROLAN_NE2KETHER, 147 NULL, NULL, 148 NULL, NULL, 149 "ProLAN" }, 150 151 { PCI_VENDOR_KTI, PCI_PRODUCT_KTI_NE2KETHER, 152 NULL, NULL, 153 NULL, NULL, 154 "KTI" }, 155 156 { 0, 0, 157 NULL, NULL, 158 NULL, NULL, 159 NULL }, 160 }; 161 162 static const struct ne_pci_product * 163 ne_pci_lookup(const struct pci_attach_args *pa) 164 { 165 const struct ne_pci_product *npp; 166 167 for (npp = ne_pci_products; npp->npp_name != NULL; npp++) { 168 if (PCI_VENDOR(pa->pa_id) == npp->npp_vendor && 169 PCI_PRODUCT(pa->pa_id) == npp->npp_product) 170 return (npp); 171 } 172 return (NULL); 173 } 174 175 /* 176 * PCI constants. 177 * XXX These should be in a common file! 178 */ 179 #define PCI_CBIO 0x10 /* Configuration Base IO Address */ 180 181 static int 182 ne_pci_match(struct device *parent, struct cfdata *match, 183 void *aux) 184 { 185 struct pci_attach_args *pa = aux; 186 187 if (ne_pci_lookup(pa) != NULL) 188 return (1); 189 190 return (0); 191 } 192 193 static void 194 ne_pci_attach(struct device *parent, struct device *self, void *aux) 195 { 196 struct ne_pci_softc *psc = device_private(self); 197 struct ne2000_softc *nsc = &psc->sc_ne2000; 198 struct dp8390_softc *dsc = &nsc->sc_dp8390; 199 struct pci_attach_args *pa = aux; 200 pci_chipset_tag_t pc = pa->pa_pc; 201 bus_space_tag_t nict; 202 bus_space_handle_t nich; 203 bus_space_tag_t asict; 204 bus_space_handle_t asich; 205 const char *intrstr; 206 const struct ne_pci_product *npp; 207 pci_intr_handle_t ih; 208 pcireg_t csr; 209 210 npp = ne_pci_lookup(pa); 211 if (npp == NULL) { 212 printf("\n"); 213 panic("ne_pci_attach: impossible"); 214 } 215 216 dsc->sc_dev = self; 217 218 printf(": %s Ethernet\n", npp->npp_name); 219 220 #ifdef IPKDB_NE_PCI 221 if (ne_pci_isipkdb(pc, pa->pa_tag)) { 222 nict = ipkdb_softc.sc_ne2000.sc_dp8390.sc_regt; 223 nich = ipkdb_softc.sc_ne2000.sc_dp8390.sc_regh; 224 ne_kip->port = nsc; 225 } else 226 #endif 227 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 228 &nict, &nich, NULL, NULL)) { 229 aprint_error_dev(dsc->sc_dev, "can't map i/o space\n"); 230 return; 231 } 232 233 asict = nict; 234 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET, 235 NE2000_ASIC_NPORTS, &asich)) { 236 aprint_error_dev(dsc->sc_dev, "can't subregion i/o space\n"); 237 return; 238 } 239 240 dsc->sc_regt = nict; 241 dsc->sc_regh = nich; 242 243 nsc->sc_asict = asict; 244 nsc->sc_asich = asich; 245 246 /* Enable the card. */ 247 csr = pci_conf_read(pc, pa->pa_tag, 248 PCI_COMMAND_STATUS_REG); 249 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 250 csr | PCI_COMMAND_MASTER_ENABLE); 251 252 /* This interface is always enabled. */ 253 dsc->sc_enabled = 1; 254 255 dsc->sc_mediachange = npp->npp_mediachange; 256 dsc->sc_mediastatus = npp->npp_mediastatus; 257 dsc->sc_media_init = npp->npp_media_init; 258 dsc->init_card = npp->npp_init_card; 259 260 /* 261 * Do generic NE2000 attach. This will read the station address 262 * from the EEPROM. 263 */ 264 ne2000_attach(nsc, NULL); 265 266 /* Map and establish the interrupt. */ 267 if (pci_intr_map(pa, &ih)) { 268 aprint_error_dev(dsc->sc_dev, "couldn't map interrupt\n"); 269 return; 270 } 271 intrstr = pci_intr_string(pc, ih); 272 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, dp8390_intr, dsc); 273 if (psc->sc_ih == NULL) { 274 aprint_error_dev(dsc->sc_dev, "couldn't establish interrupt"); 275 if (intrstr != NULL) 276 aprint_error(" at %s", intrstr); 277 aprint_error("\n"); 278 return; 279 } 280 aprint_normal_dev(dsc->sc_dev, "interrupting at %s\n", intrstr); 281 } 282 283 #ifdef IPKDB_NE_PCI 284 static int 285 ne_pci_isipkdb(pci_chipset_tag_t pc, pcitag_t tag) 286 { 287 return !memcmp(&pc, &ipkdb_pc, sizeof pc) 288 && !memcmp(&tag, &ipkdb_tag, sizeof tag); 289 } 290 291 int 292 ne_pci_ipkdb_attach(struct ipkdb_if *kip, bus_space_tag_t iot, 293 pci_chipset_tag_t pc, int bus, int dev) 294 { 295 struct pci_attach_args pa; 296 bus_space_tag_t nict, asict; 297 bus_space_handle_t nich, asich; 298 u_int32_t csr; 299 300 pa.pa_iot = iot; 301 pa.pa_pc = pc; 302 pa.pa_device = dev; 303 pa.pa_function = 0; 304 pa.pa_flags = PCI_FLAGS_IO_ENABLED; 305 pa.pa_tag = pci_make_tag(pc, bus, dev, /*func*/0); 306 pa.pa_id = pci_conf_read(pc, pa.pa_tag, PCI_ID_REG); 307 pa.pa_class = pci_conf_read(pc, pa.pa_tag, PCI_CLASS_REG); 308 if (ne_pci_lookup(&pa) == NULL) 309 return -1; 310 311 if (pci_mapreg_map(&pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 312 &nict, &nich, NULL, NULL)) 313 return -1; 314 315 asict = nict; 316 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET, 317 NE2000_ASIC_NPORTS, &asich)) { 318 bus_space_unmap(nict, nich, NE2000_NPORTS); 319 return -1; 320 } 321 322 /* Enable card */ 323 csr = pci_conf_read(pc, pa.pa_tag, PCI_COMMAND_STATUS_REG); 324 pci_conf_write(pc, pa.pa_tag, PCI_COMMAND_STATUS_REG, 325 csr | PCI_COMMAND_MASTER_ENABLE); 326 327 ipkdb_softc.sc_ne2000.sc_dp8390.sc_regt = nict; 328 ipkdb_softc.sc_ne2000.sc_dp8390.sc_regh = nich; 329 ipkdb_softc.sc_ne2000.sc_asict = asict; 330 ipkdb_softc.sc_ne2000.sc_asich = asich; 331 332 kip->port = &ipkdb_softc; 333 ipkdb_pc = pc; 334 ipkdb_tag = pa.pa_tag; 335 ne_kip = kip; 336 337 if (ne2000_ipkdb_attach(kip) < 0) { 338 bus_space_unmap(nict, nich, NE2000_NPORTS); 339 return -1; 340 } 341 342 return 0; 343 } 344 #endif /* IPKDB_NE_PCI */ 345