if_re_pci.c revision 1.8.2.2
1 /* $NetBSD: if_re_pci.c,v 1.8.2.2 2005/11/24 22:06:38 tron Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1998-2003 5 * Bill Paul <wpaul (at) windriver.com>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* $FreeBSD: /repoman/r/ncvs/src/sys/dev/re/if_re.c,v 1.20 2004/04/11 20:34:08 ru Exp $ */ 36 37 /* 38 * RealTek 8139C+/8169/8169S/8110S PCI NIC driver 39 * 40 * Written by Bill Paul <wpaul (at) windriver.com> 41 * Senior Networking Software Engineer 42 * Wind River Systems 43 * 44 * NetBSD bus-specific frontends for written by 45 * Jonathan Stone <jonathan (at) netbsd.org> 46 */ 47 48 #include "bpfilter.h" 49 #include "vlan.h" 50 51 #include <sys/types.h> 52 53 #include <sys/param.h> 54 #include <sys/endian.h> 55 #include <sys/systm.h> 56 #include <sys/sockio.h> 57 #include <sys/mbuf.h> 58 #include <sys/malloc.h> 59 #include <sys/kernel.h> 60 #include <sys/socket.h> 61 #include <sys/device.h> 62 63 #include <net/if.h> 64 #include <net/if_arp.h> 65 #include <net/if_dl.h> 66 #include <net/if_ether.h> 67 #include <net/if_media.h> 68 #include <net/if_vlanvar.h> 69 70 #include <machine/bus.h> 71 72 #include <dev/mii/mii.h> 73 #include <dev/mii/miivar.h> 74 75 #include <dev/pci/pcireg.h> 76 #include <dev/pci/pcivar.h> 77 #include <dev/pci/pcidevs.h> 78 79 /* 80 * Default to using PIO access for this driver. 81 */ 82 #define RE_USEIOSPACE 83 84 #include <dev/ic/rtl81x9reg.h> 85 #include <dev/ic/rtl81x9var.h> 86 #include <dev/ic/rtl8169var.h> 87 88 struct re_pci_softc { 89 struct rtk_softc sc_rtk; 90 91 void *sc_ih; 92 pci_chipset_tag_t sc_pc; 93 pcitag_t sc_pcitag; 94 }; 95 96 static int re_pci_probe(struct device *, struct cfdata *, void *); 97 static void re_pci_attach(struct device *, struct device *, void *); 98 99 /* 100 * Various supported device vendors/types and their names. 101 */ 102 static const struct rtk_type re_devs[] = { 103 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, RTK_HWREV_8139CPLUS, 104 "RealTek 8139C+ 10/100BaseTX" }, 105 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8169, 106 "RealTek 8169 Gigabit Ethernet" }, 107 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8169S, 108 "RealTek 8169S Single-chip Gigabit Ethernet" }, 109 { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_LAPCIGT, RTK_HWREV_8169S, 110 "Corega CG-LAPCIGT Gigabit Ethernet" }, 111 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8110S, 112 "RealTek 8110S Single-chip Gigabit Ethernet" }, 113 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T, RTK_HWREV_8169S, 114 "D-Link DGE-528T Gigabit Ethernet" }, 115 { PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902, RTK_HWREV_8169S, 116 "US Robotics (3Com) USR997902 Gigabit Ethernet" }, 117 { 0, 0, 0, NULL } 118 }; 119 120 static const struct rtk_hwrev re_hwrevs[] = { 121 { RTK_HWREV_8139, RTK_8139, "" }, 122 { RTK_HWREV_8139A, RTK_8139, "A" }, 123 { RTK_HWREV_8139AG, RTK_8139, "A-G" }, 124 { RTK_HWREV_8139B, RTK_8139, "B" }, 125 { RTK_HWREV_8130, RTK_8139, "8130" }, 126 { RTK_HWREV_8139C, RTK_8139, "C" }, 127 { RTK_HWREV_8139D, RTK_8139, "8139D/8100B/8100C" }, 128 { RTK_HWREV_8139CPLUS, RTK_8139CPLUS, "C+"}, 129 { RTK_HWREV_8169, RTK_8169, "8169"}, 130 { RTK_HWREV_8169S, RTK_8169, "8169S"}, 131 { RTK_HWREV_8110S, RTK_8169, "8110S"}, 132 { RTK_HWREV_8100, RTK_8139, "8100"}, 133 { RTK_HWREV_8101, RTK_8139, "8101"}, 134 { 0, 0, NULL } 135 }; 136 137 CFATTACH_DECL(re_pci, sizeof(struct re_pci_softc), re_pci_probe, re_pci_attach, 138 NULL, NULL); 139 140 /* 141 * Probe for a RealTek 8139C+/8169/8110 chip. Check the PCI vendor and device 142 * IDs against our list and return a device name if we find a match. 143 */ 144 static int 145 re_pci_probe(struct device *parent, struct cfdata *match, void *aux) 146 { 147 const struct rtk_type *t; 148 struct pci_attach_args *pa = aux; 149 bus_space_tag_t rtk_btag; 150 bus_space_handle_t rtk_bhandle; 151 bus_size_t bsize; 152 u_int32_t hwrev; 153 154 t = re_devs; 155 156 while (t->rtk_name != NULL) { 157 if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && 158 (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { 159 160 /* 161 * Temporarily map the I/O space 162 * so we can read the chip ID register. 163 */ 164 #ifdef RE_USEIOSPACE 165 if (pci_mapreg_map(pa, RTK_PCI_LOIO, 166 PCI_MAPREG_TYPE_IO, 0, &rtk_btag, 167 &rtk_bhandle, NULL, &bsize)) { 168 aprint_error("can't map i/o space\n"); 169 return 0; 170 } 171 #else 172 if (pci_mapreg_map(pa, RTK_PCI_LOMEM, 173 PCI_MAPREG_TYPE_MEM, 0, &rtk_btag, 174 &rtk_bhandle, NULL, &bsize)) { 175 aprint_error("can't map mem space\n"); 176 return 0; 177 } 178 #endif 179 hwrev = bus_space_read_4(rtk_btag, rtk_bhandle, 180 RTK_TXCFG) & RTK_TXCFG_HWREV; 181 bus_space_unmap(rtk_btag, rtk_bhandle, bsize); 182 if (t->rtk_basetype == hwrev) 183 return 2; /* defeat rtk(4) */ 184 } 185 t++; 186 } 187 188 return 0; 189 } 190 191 static void 192 re_pci_attach(struct device *parent, struct device *self, void *aux) 193 { 194 struct re_pci_softc *psc = (void *)self; 195 struct rtk_softc *sc = &psc->sc_rtk; 196 struct pci_attach_args *pa = aux; 197 pci_chipset_tag_t pc = pa->pa_pc; 198 pci_intr_handle_t ih; 199 const char *intrstr = NULL; 200 const struct rtk_type *t; 201 const struct rtk_hwrev *hw_rev; 202 int hwrev; 203 int error = 0; 204 int pmreg; 205 pcireg_t command; 206 bus_size_t bsize; 207 208 209 /* 210 * Handle power management nonsense. 211 */ 212 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { 213 command = pci_conf_read(pc, pa->pa_tag, pmreg + PCI_PMCSR); 214 if (command & RTK_PSTATE_MASK) { 215 u_int32_t iobase, membase, irq; 216 217 /* Save important PCI config data. */ 218 iobase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOIO); 219 membase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOMEM); 220 irq = pci_conf_read(pc, pa->pa_tag, PCI_INTERRUPT_REG); 221 222 /* Reset the power state. */ 223 aprint_normal("%s: chip is is in D%d power mode " 224 "-- setting to D0\n", sc->sc_dev.dv_xname, 225 command & RTK_PSTATE_MASK); 226 227 command &= ~RTK_PSTATE_MASK; 228 pci_conf_write(pc, pa->pa_tag, 229 pmreg + PCI_PMCSR, command); 230 231 /* Restore PCI config data. */ 232 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOIO, iobase); 233 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOMEM, membase); 234 pci_conf_write(pc, pa->pa_tag, PCI_INTERRUPT_REG, irq); 235 } 236 } 237 238 /* 239 * Map control/status registers. 240 */ 241 command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 242 command |= PCI_COMMAND_MASTER_ENABLE; 243 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 244 245 #ifdef RE_USEIOSPACE 246 if (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 247 &sc->rtk_btag, &sc->rtk_bhandle, NULL, &bsize)) { 248 aprint_error("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 249 return; 250 } 251 #else 252 if (pci_mapreg_map(pa, RTK_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 253 &sc->rtk_btag, &sc->rtk_bhandle, NULL, &bsize)) { 254 aprint_error("%s: can't map mem space\n", sc->sc_dev.dv_xname); 255 return; 256 } 257 #endif 258 t = re_devs; 259 hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; 260 261 while (t->rtk_name != NULL) { 262 if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && 263 (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { 264 265 if (t->rtk_basetype == hwrev) 266 break; 267 } 268 t++; 269 } 270 aprint_normal(": %s\n", t->rtk_name); 271 272 hw_rev = re_hwrevs; 273 hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; 274 while (hw_rev->rtk_desc != NULL) { 275 if (hw_rev->rtk_rev == hwrev) { 276 sc->rtk_type = hw_rev->rtk_type; 277 break; 278 } 279 hw_rev++; 280 } 281 282 sc->sc_dmat = pa->pa_dmat; 283 284 /* 285 * No power/enable/disable machinery for PCI attac; 286 * mark the card enabled now. 287 */ 288 sc->sc_flags |= RTK_ENABLED; 289 290 /* Hook interrupt last to avoid having to lock softc */ 291 /* Allocate interrupt */ 292 if (pci_intr_map(pa, &ih)) { 293 aprint_error("%s: couldn't map interrupt\n", 294 sc->sc_dev.dv_xname); 295 return; 296 } 297 intrstr = pci_intr_string(pc, ih); 298 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, re_intr, sc); 299 if (psc->sc_ih == NULL) { 300 aprint_error("%s: couldn't establish interrupt", 301 sc->sc_dev.dv_xname); 302 if (intrstr != NULL) 303 aprint_error(" at %s", intrstr); 304 aprint_error("\n"); 305 return; 306 } 307 aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 308 309 re_attach(sc); 310 311 /* 312 * Perform hardware diagnostic. 313 * XXX: this diagnostic only makes sense for attachemnts with 64-bit 314 * busses: PCI, but not CardBus. 315 */ 316 error = re_diag(sc); 317 if (error) { 318 aprint_error( 319 "%s: attach aborted due to hardware diag failure\n", 320 sc->sc_dev.dv_xname); 321 322 re_detach(sc); 323 324 if (psc->sc_ih != NULL) { 325 pci_intr_disestablish(pc, psc->sc_ih); 326 psc->sc_ih = NULL; 327 } 328 329 if (bsize) 330 bus_space_unmap(sc->rtk_btag, sc->rtk_bhandle, bsize); 331 } 332 } 333
Indexes created Tue Oct 28 12:10:06 GMT 2025